Dear Sir, with you Physics feels like lullaby:) i consider myself lucky to have attended few of your lectures at IIT Kanpur. Thanks a lot Sir, I could make it to IIT only cause of your book "Concepts of Physics"
Sir aap ki vajaha se may gao ke hindi mediam me padke bhi jee ki taiyari kar rha hu sir aap ki vajaha se hindi mediam ka bacha jee ka sapna dekh sakta hai thanks sir ❤️ ASL TEAM
Sir please make a detailed video on coriolis force and it's application because youtuber made it very complex which can't be easily visualise. Thankyou.
Sir I am souvik samanta. I am form west Bengal ‚ bardhaman . I have a question . In the equation - E =mc2 In that case ‚ Energy = mass × hole squre of speed of light . The question is why we are muntiplying the ' c2 ' in that equation And why we chose only the number of the speed of light
Mai aapse haath jod kar vinti karta hu sir pl ncert 11th and 12 th class ka physics ka video bnakar youtube par upload kar dijiye Yakeen maniye isse bhauth logo ko fyda hoga
Respected Sir can you please explain how emf equals integral of F.dl because as far as I know it is E.dl? Would be really obliged if I can get some help.
Yes , but the work done by the mag field is f.dl so emf would be dividing it by the charge But I am not sure how we would derive it in this method , and if you Understood this , then how did v1 not contribute anything because there is a component of downward force by v1 force
Sir I have a question In 9th class It was written that in GMm/r² Take m as 1 as in comparison to M it's much smaller So g=GM/r² But let's say if something is falling we will take M as earth's mass and m as object If we take 3 different object masses it will be small but each differs so g must differs as we can't always just assume it as one . Maybe minor difference but it is there so g is different for every object (minor difference) so each must take different time to reach earth As g has minor difference for them t must also differs minorly but difference is there.🤔
Sir, I have a doubt which has been haunting me since a long time. The law of conservation of energy states that energy cant be destroyed, but is in a close system a bullet is fired at a metal block, the chemical energy gets converted to kinetic energy of bullet then what happens to that energy, it gets used and destroyed (maybe). Thanks for reading sir
@@hcverma2928 Sir I am ABHISEK, I have a question of which I didn't get the answer from anywhere The question is, " WHY PARALLEL FIELD LINES WITH DIFFERENT DISTANCE BETWEEN THEM, CAN'T EXIST ??" please pick the question sir.
Sir in case of current caring two parallel straight conductors they exerts force on each other the nature of this force is depend on the direction of the current in the conductor if the direction of the current in both the conductors is same then the force is attractive in nature and the force is repulsive in nature when the direction of the current is opposite here Newton's third law is valid every action has an equal and opposite reaction . But in case of
Sir, we find the derivative of a function by finding out the slope or Gradient of a function at a particular point. Whereas, we find integration by calculating the area under the curve associated........ Differentiation is also known as the reverse process of Integration........ ..d/dx(x*2) = 2x,...... Integration (2x dx) = x*2...... similarly, d/dx(sin x) = cosx. Integration (cosx dx) = sin x ...... Sir, how could it be proved and explained well that integration is are erse process of differentiation With excellent physical interpretation and mathematically as well? Sir, I am waiting eagerly for your answer. I am greatly motivated by your teaching techniques . Pls Solve my Problem 😔🙏😔
Sir, I am a student of class 11. I have a doubt from the chapter 'Work and Energy' which is given in your book. Two charged particles A and B repel each other by a force k/r^2, where k is a constant and r is the separation between them. The particle A is clamped to a fixed point in the lab and the particle B which has a mass m, is released from rest with an initial separation r0 from A. Find the charge in the potential energy of the two particle system as the separation increases to a large value. What will be the speed of the particle B in this situation?
Hello sir,I am a student of 11th standard .And I am suffer with a lots of problems because of physics.My basic are still not clear whatever the topic belongs to lower classes.Sometimes,I feel that I am depressed but I can't get depressed sir..I don't want to loose this battle of life . Whenever I am studying physics ,I get distract because my concepts are gonna mixup then I take another subject for study.I want to make a proper schedule of physics ,I want to become a good student in physics also.I know that I am able to become a professor in physics I just want to be more than average student. Sir,please tell me what I do or not??Day by day it is become tough for me. 😶Please !give a solution in your way
1.Bhai sabse pehle social media delete kar de, 2. Koi acche teacher se padh koi didi bhaiya se nhi jo khud hi confused ho, 3. Book mat likh apni language me notes aur [short notes bna (only important formula and diagram)] 4. solutions aur methods ko yaad mat kar concept samjhne ki koshish kar, yaad karenga toh bhul hi jaayega.( Derivation, Formula, short tricks kar Lena ) 5. Practice.....
I think that in motional emf magnetic force can act on that chaarge particle because here charge particle is moving due to v and we know that magnetic force can act on moving chagre
Sir, I am really curious to know about the Higgs boson and Higgs field but couldn't understand about it really well. Could you please explain it in a video
Sir I am ABHISEK, I have a question of which I didn't get the answer from anywhere The question is, " WHY PARALLEL FIELD LINES WITH DIFFERENT DISTANCE BETWEEN THEM, CAN'T EXIST ??" please pick the question sir.
Hello sir I have a doubt from refraction I am a student of class 10 My doubt is that Is 100% refraction possible through glass slap when the light falling on the slab is perpendicular or it is falling parallel to normal or is it possible if it is falling obliquely also?
Sir in a circuit with two resistors sum of voltages of two resistors is equal to Voltas of battery but when we remove one resistor then the voltage of one resistor is equal to voltage of battery here voltage of a resistor increases but current remains same this contradict a ohms law that voltage is proportional to current because in this case voltage of first resistor increases but current remain constant Please sir give me a answer of this question
Sir myself Rahul from mumbai i had a quation that if we take a magnet it has a magnetic field which travels to north pole to south So my question is that If a single charge (+ve)moves and crate a magnetic field then where the lines of force go I mean that in a permanent magnet's lines of force go from north pole to south Since we know that positive charge lines of force comes outwards Then what about a single charge?
Sir I have a question, We know that blackhole absorbs light Because of its gravitational force, but mass of Photon is zero and according to Newton's Universal law of gravitation, net force between blackhole and Photon is zero then how can blackhole attract photons towards itself? Is blackhole violets the law of Newton?
@@jsaifi7402 no brother they don't hv any mass neither rest mass nor relativistic mass and if they will have mass then by going through SPEED OF LIGHT their mass will become infinity and not remain 0
Sir , I am studying in class 12 . I have a doubt in AC chapter . The question is regarding on AC circuit containing only an inductor having I= Io sin( omega t -π/2) why ??? (Omega t + π/2 ). PLZ CLEAR IT !!!!!!!!!!!!!!!!!!!!!!!!!
Sir, I have a doubt in Einstein's photoelectric theory that if we have a photon and it removes electron, it generates current. Then can we say that a magnetic field is also generated?
Sir, Please Explain about V(Potential Difference), I (Current) and R(Resistance) that why It failed with the formula of P(power) =I²R From this equation p is directly proportional to the R But it's not correct Please explain about it Sir????? #SHANKA SAMADHAN
Sir,I want to ask a doubt can you please clarify it still bugging me since the starting of the chapter: @* Let's consider ,we had a sphere which was screened from inside, there was only given a incident ray striking the upper part of sphere perpendicular. I,don't know the direction of reflected ray.So,can I say at point of incidence I can draw multiple normals?*(only direction of incident ray was given). I will be pleased if you help me with this, thank you.
sir I am very curious to know about theory of relativity But when I try to read it i cannot understand bcz i am 10th class student sir I request plz tell me this by simplest way I shall be highly obliged to you 🙏🙏
Question is that =The length of one wire is perpendicular to the another wire ( they don't intersect each other)carrying current so first wire exert will exert force on second wire then the same force but opposite in direction exerted by Second wire on first?...
i think , i have to add a little more in the answer that is since we can extract energy from an motional e.m.f so it may seem to some one that there is a violation of law that is magnetic force gives us that energy but no actually the energy is coming from the motion of rod which is converting into electrical energy...
Hii sir i want to ask a question to yu - if we kick a football with our leg with force of 100Nweton then according to newton's third law of motion football should also apply 100 newton force to our leg. Then why we doesn't feel any hurt on our leg
Sir my name is Siddhant Jani , I have a very big doubt , however nobody answers my doubts. I study in class 10 and my doubt is of the chapter electricity. Sir we should assume a circut with battery and a wire. So sir if the resistence of the wire is infinite then no current can pass through the wires.Now sir as we go on decreasing the resistence of the wire( By changing the wires) we find that more current can flow to the circut. And as the resistence of the wire starts to approach towards zero , moreand more current can pass through the wire. Now sir in a video you had cleared the doubt of a student( current with no potential difference) where u had stated that the wires are so thick that we assume the resistence as zero(In that case sir actually the potential difference was also not zero , since the resistence of the wire was not actually zero) due to which current flowed. Now sir back to my doubt IF THE WIRE ACTUALLY HAD THE RESISTENCE AS ZERO THEN THAT WOULD MEAN LITERALLY NO POTENTIAL DIFFERENCE ACROSS BATTERY AND HENCE ELECTRIC CURRENT WOULD NOT BE ABLE TO FLOW ( NO DIFFERENCE OF ENERGY OF ELECTRONS). SO SIR WHEN THE WIRES HAVE POTENTIAL DIFFERENCE OF ZERO AND INFINITE SAME PROPERTIES ARE SHOWN( NO CURRENT IS ALLOWED TO FLOW THROUGH THEM). BUT SIR AS WE INCREASE AND DECREASE THE RESISTENCE OF THE WIRES(POTENTIAL DIFFERENCE IS DIRECTLY PROPORTIONAL TO THE RESISTENCE) WE GET DIFFERENT PHYSICAL PROPERTIES OF THE WIRES. SO SIR AT 2 EXTREME CASES WE GET THE SAME RESULTS??? CAN U PLS EXPLAIN THIS . ALSO SIR I HAD ANOTHER DOUBT THAT IN SUPERCONDUCTORS THE THE RESISTENCE IS ACTUALLY ZERO , BUT STILL ELECTRIC CURRENT FLOWS THROUGH THEM . SIR IF RESISTENCE IS ZERO THEN THE P.D IS ALSO ZERO SO NO DIFFERENCE IN ENERGY OF ELECTRONS < BUT STILL ELECTRIC CURRENT FLOWS THROUGH SUPERCONDUCTORS. HOW?? SIR I THINK THE ANSWER TO THIS QUESTION WILL CLEAR MY PREVIOUS QUESTION. SIR IF POSSIBLE PLS CLEAR MY DOUBT SINCE NO ONE CLEARS MY DOUBTS.
@@jsaifi7402 If the potential difference across 2 ends is 0 then how can current pass through both the ends. (There needs to be a difference in energy in order for current to flow).Since the resistance is actually 0 , so there is no difference of energy in electrons , and hence how can electric current flow?? Potential difference across 2 ends is a must for electric current to flow.
@@jsaifi7402 But in superconductors the resistance is not actually zero. Its approaching towards zero. So when the resistance of a wire gradually tends towards zero , there is no energy required to move a charge. But if the resistance actually becomes 0 then how can current flow. because v/i = r and similarly v/r = i. Now as the resistance decreases the current flowing increases, but the current only increases till when the resistance is approaching towards 0.However this does not happen when the resistance is actually 0. you should know that when u divide any number with 0 u dont get infinity. So that is my question. See there is a difference in saying the resistance is 0 and is approaching towards 0. Also u are already assuming that current flows when the resistance is actually 0 . See when the resistance is actually 0, flowing of current is not possible only. See when u divide by 0 u dont get an answer. (v/r = i)Similarly when the resistance is actually 0(v/0) , how can current flow in the first place. and when the resistance is infinity then also no current can flow. So there is a similarity in characteristics of a wire when the resistance is 0 and when its infinity. So at 2 extreme cases we get the same results???Pls explain this
@@jsaifi7402 Lets assume that the resistance of a wire is 0. See you have also stated that v/0 = undefined. So when the resistance is 0 (v/0 = i). Now according to you there will be current flowing through the wire if the resistance is 0. If we assume that some current flows through the wire then this equation (v/0 = i) cannot be satisfied. But u might argue that v(potential difference) would be zero bec i considered the resistance as 0. ( and v/i = r)(you are right when the resistance is 0 the potential difference would also be 0)That would give us 0/0 = i.(v/r = i)( v = 0 , i = 0) Now logically 0/0 can actually be anything.( if 0/0 = 1 then 1 x 0 = 0, 0/0 = 2, 2x 0 = 0) , so 0/0 can actually be anything. This actually means that when current flows through a wire with 0 resistance the current is not defined. So the current flowing through the wire can be 1ampere , 2 ampere 3 ampere , but can also be 0 ampere. So lets consider one case when the resistance of a wire is 0 ohms , and the current flowing is 0 amperes( I am not saying that the current will always be 0 when the resistance is 0)(But there will be 1 case in which the current flowing through the wire will be 0). Also when the resistance is infinite the current flowing through the wire would be 0. So there is a similarity in characteristics of a wire when the resistance is 0 and when its infinity.So at 2 extreme cases we get the same results??? Now you might argue that 0/0 is undefined and not any number. So i would like to ask YOU what is the current when the resistance of a wire is actually 0. Because when u say that the current is undefined what do you actually mean. It means that the current is not defined, meaning the current could be anything and it does not have a definite or fixed value. * Also i would like to say one more thing . When the potential difference across 2 ends is 0 CURRENT CANNOT FLOW BETWEEN 2 ENDS. YOU MIGHT ARGUE THAT THIS ISNT TRUE WHEN THE RESISTANCE ACROSS 2 ENDS IS 0. BUT TO THAT I WOULD REPLY THAT WHEN THE POTENTIAL DIFFERENCE ACROSS 2 ENDS IS 0 THE RESISTANCE ACROSS THE 2 ENDS IS ALSO ACTUALLY (ALWAYS) 0. SO BY SAYING THAT ELECTRIC CURRENT WOULD FLOW WHEN THE RESISTANCE ACROSS 2 ENDS IS 0 YOU ARE SAYING THAT WHEN THE POTENTIAL DIFFERENCE ACROSS 2 ENDS IS 0 ,CURRENT WOULD ALWAYS FLOW .( WHEN THE POTENTIAL DIFFERENCE IS ALWAYS 0 THE RESISTANCE ACROSS 2 ENDS WOULD ALSO ALWAYS BE 0) BUT WE KNOW THAT CURRENT DOES NOT FLOW WHEN THE POTENTIAL DIFFERENCE ACROSS 2 ENDS IS 0.OK FINE LETS CONSIDER 1 CASE (ONLY 1) WHEN THE POTENTIAL DIFFERENCE ACROSS 2 ENDS IS 0 AND HENCE THE CURRENT DOES NOT FLOW. IN THIS CASE THE RESISTANCE WOULD ALSO BE ZERO(V/I = R). SO WE HAVE PROVED THAT IN 1 CASE WHEN THE RESISTANCE IS 0 , CURRENT DOES NOT FLOW. AND NOW AGAIN I AM ASKING THE SAME QUESTION
@@jsaifi7402 I understand what you are trying to say , and you are not completely wrong.However I am not fully convinced by your 3rd point. See you yourself have proved that 0/0 can be anything. You said that there was no battery and a resistor of 10ohms. Here the current would obviously be 0. So v/i = r. here v=0 , i = 0, r is 10ohms , so 0/0 = 10. Similarly here the resistor could have any resistance. Now we can also take v/r = i , if the resistance is 0 , the potential difference is 0 , then the current can be anything. Even 0. Like in the previous case the resistance could be anything. *BY THE WAY THE REFRACTIVE INDEX OF GLASS WHEN A RAY IS PASSED NORMALLY , IS NOT 0/0 , BUT ITS 1 ( sini/sinr) , sin90/sin90 = 1/1= 1. HERE ACTUALLY IN 1 CASE WE GET A DIFFERENT RESULT THAN OTHER CASES. IN ALL REST CASES THE REFRACTIVE INDEX OF A GLASS SLAB WOULD BE 1.5. BUT IN THE CASE WE ARE TALKING NOW , THE CURRENT PASSED THROUGH THE WIRE COULD BE ANYTHING. SEE YOU YOURSELF HAVE ALSO PROVED THAT 0/0 CAN BE ANYTHING. -ALSO LAST BUT NOT THE LEAST , YOU SAID THAT R DOES NOT DEPEND ON V. HOWEVER THE V IS THE ENERGY PER UNIT CHARGE , SO IF MORE ENERGY IS REQUIRED TO MOVE A CHARGE THAT MEANS THAT THE WIRE HAS MORE RESISTANCE. SO ACTUALLY RESISTANCE DOES DEPEND ON THE POTENTIAL DIFFERENCE. NOW IN THE CASE YOU HAVE STATED , YOU HAVE ACTUALLY PROVED WHAT I WANTED TO PROVE. YOU HAVE CONSIDERED V = 0 , i = 0 , SO YOU SAID THAT THE RESISTANCE COULD BE ANYTHING AND EVEN 10 OHMS AND IT DOES NOT DEPEND ON V. BUT THAT IS EXACTLY MY POINT. V/R = i , WHEN V AND R ARE BOTH 0 , I COULD BE ANYTHING AND EVEN 0. SEE YOU CANNOT ACTUALLY DENY THIS , BECAUSE I HAVE USED YOUR EXAMPLE TO PROVE MY STATEMENT AND MY DOUBT. THANK YOU
@@jsaifi7402 But what about your example where you yourself proved that 0/0 = 10 , u said there was no battery , so v = 0 , so i = 0 , so v/i = 0/0 , and you yourself said that the resistor could have any resistance , like you said that the resistance was 10ohms , so 0/0 = 10 , similiarly with respect to the chapter electricity 0/0 can be anything(the resistance could be anything)
Page 126 worked example 3 HC Verma new edition has a error in which (2.00 kg)(9.8m/s²)(1/2) +1 is written 11.8 According to question solution is correct but printing is wrong
Hello sir, I wanted to ask a question. Let's say There is an object which is half dipped in a bucket filled with water and it's shadow can be seen inside the bucket as light is falling from the front. But we can only see that part of shadow of the object which above the surface of water i.e in air and the part which is completely immersed in water. We cannot see that part in shadow which is present exactly at the interface of both media (air and water).The shadow appears to be break as no shadow has been formed at the interface. Why?
Sir Newton's ka action reaction pair magnetism me shayad break hota hai. Question:- One x axis ke parallel wire hai Uske perpendicular ek wire hai And under Jane wali magnetic field hai. Sir usme mujhe eisa lag raha hai ki Newton ka action reaction wala rule shayad break ho raha hai
Sir how we can say that electrostatic force is stronger than gravitational force. As they are totally different things. First one is due to charge and second one is due to mass. Then how we can compare these two different forces. I am confused please answer me.
hello sir this is a very basic question but can you explain the exact function of a galvanometer, what does it show and what do its deflections indicate
The deflection in galvanometer just indicates that a current is passing through it. It can also show what's the direction of current in the circuit. It works on the principle of "torque on a current carrying coil in a magnetic field". Using same principle, you can convert a galvanometer into ammeter and voltmeter.
Hello sir, I am a student of class 8. I have a doubt related to energy: Hypothetically, imagine a stone on the top of a hill. No force is acting on that stone and the stone isn't acting against any forces, yet it is still there. Even though there is a height, no work was ever done on it to bring it to that state of position. Will the stone have potential energy? Will we take the height as 0 or not? Please solve the doubt Sir. Thank you
Yes , because by Einstein theoram energy is directly proportional to to the mass and the stone is kept on the top a hill it means it has a some height of energy which we called potential energy but in case if we falling freely this stone from this height then it comes in some motion having some moving velocity and in this phenomenon potential energy is decreasing and by come into the motion having velocity it will be covert in to kinetic energy because height will decrease
the current that is created due to changing electric field,for example in charging of a capacitor when its not completely charged to its capacity there is a constant change in the charge getting stored and hence the electric field changes and the change in electric field causes a varying magnetic field which causes displacement current.This is in support of the fact that changing electric fields cause magnetic fields.In the space between the capacitor the amperes circuital law did not provide any magnetic field because the current there was 0.To overcome the inconsistency of no magnetic field being there a current was established between the plates of the capacitor.
![Blox Fruits Dragon Rework Update [Full Stream]](http://i.ytimg.com/vi/EqDAp8udhm0/mqdefault.jpg)
Dear Sir, with you Physics feels like lullaby:) i consider myself lucky to have attended few of your lectures at IIT Kanpur. Thanks a lot Sir, I could make it to IIT only cause of your book "Concepts of Physics"
HC SIR YOUR CONCEPT MOST EASILY UNDERSTANDABLE 💕😍
Glad to hear that
@@hcverma2928 sir please tell about next round of naest
Sir aap ki vajaha se may gao ke hindi mediam me padke bhi jee ki taiyari kar rha hu sir aap ki vajaha se hindi mediam ka bacha jee ka sapna dekh sakta hai thanks sir ❤️ ASL TEAM
Your books are very good
ruclips.net/video/46nnptJnh0g/видео.html
Thanks for explanation this concept guruji i have also same doubt 👏👏
You are the best sir 🙏🙏😘😘
Thanks for the explanation Sir ❤
Sir eagerly waiting for your next episode of 'hc Verma ki kahani, hc Verma ki jubaani'..... ❤️
Nice Concept 😃
Inspiration for all students
Amazing sir
Rajwant sir already cleared this concept!!
Then why you are here
Rajwant sir cleared his concept from verma sir💀
Sir,
Great video.
Thank you sir, this chapter is ongoing in my coaching
Sir respect you
B pharm undergrad ....still watching it so happy 😁
Thank you.
@@hcverma2928 sir u replied omg 😭😭😭 feeling blessed sir 🙏🙏🙏u r god 😭😭
Very nice concept
God of physics in my life 🙃
Thank you sir👍👍👍👍👍👍❤❤❤❤❤❤❤❤ 👌👌👌👌🔥🔥🔥🔥🔥
sir at 5:50 you wrote emf =qvb how is it possible?
Sir please make a detailed video on coriolis force and it's application because youtuber made it very complex which can't be easily visualise.
Thankyou.
Where can i ask you question?
Sir I am souvik samanta. I am form west Bengal ‚ bardhaman .
I have a question .
In the equation - E =mc2
In that case ‚ Energy = mass × hole squre of speed of light .
The question is why we are muntiplying the
' c2 ' in that equation
And why we chose only the number of the speed of light
sir please make a video of your book solutions
Sir please make a video on electric circuit also
Mai aapse haath jod kar vinti karta hu sir pl ncert 11th and 12 th class ka physics ka video bnakar youtube par upload kar dijiye
Yakeen maniye isse bhauth logo ko fyda hoga
Respected Sir can you please explain how emf equals integral of F.dl because as far as I know it is E.dl? Would be really obliged if I can get some help.
yes you are correct, the emf should be BvL and not qvB
Yes , but the work done by the mag field is f.dl so emf would be dividing it by the charge But I am not sure how we would derive it in this method , and if you Understood this , then how did v1 not contribute anything because there is a component of downward force by v1 force
Sir , can u please explain why magnetic field excerts force perpendicularly ???
Sir I have a question
In 9th class
It was written that in GMm/r²
Take m as 1 as in comparison to M it's much smaller
So g=GM/r²
But let's say if something is falling we will take M as earth's mass and m as object
If we take 3 different object masses it will be small but each differs so g must differs as we can't always just assume it as one . Maybe minor difference but it is there so g is different for every object (minor difference) so each must take different time to reach earth
As g has minor difference for them t must also differs minorly but difference is there.🤔
You have not understood derivation of formula well. We dont assune m to be smaller than M, it is wrong. We use F=mg and F=GMm*r2 and equate them
Sir ek video SHM per bhi banakar dijiye
Pranam sir ji🙏🙏
Sir, I have a doubt which has been haunting me since a long time. The law of conservation of energy states that energy cant be destroyed, but is in a close system a bullet is fired at a metal block, the chemical energy gets converted to kinetic energy of bullet then what happens to that energy, it gets used and destroyed (maybe).
Thanks for reading sir
@@jsaifi7402 Thanks a lot, what if I run a motor with no propeller and the electrical energy in battery gets exhausted.
@@jsaifi7402 TRUE, thanks for the information
Thnk u sir❤️
thank you sir
Most welcome
@@hcverma2928 Sir I am ABHISEK, I have a question of which I didn't get the answer from anywhere
The question is, " WHY PARALLEL FIELD LINES WITH DIFFERENT DISTANCE BETWEEN THEM, CAN'T EXIST ??"
please pick the question sir.
sir what are the number of significant figures in 67800.00
🙏🙏🙏
Sir in case of current caring two parallel straight conductors they exerts force on each other the nature of this force is depend on the direction of the current in the conductor if the direction of the current in both the conductors is same then the force is attractive in nature and the force is repulsive in nature when the direction of the current is opposite here Newton's third law is valid every action has an equal and opposite reaction . But in case of
Yes there is action reaction pair
Sir, we find the derivative of a function by finding out the slope or Gradient of a function at a particular point. Whereas, we find integration by calculating the area under the curve associated........
Differentiation is also known as the reverse process of Integration........ ..d/dx(x*2) = 2x,...... Integration (2x dx) = x*2...... similarly, d/dx(sin x) = cosx. Integration (cosx dx) = sin x ......
Sir, how could it be proved and explained well that integration is are erse process of differentiation With excellent physical interpretation and mathematically as well?
Sir, I am waiting eagerly for your answer.
I am greatly motivated by your teaching techniques .
Pls Solve my Problem 😔🙏😔
sir if lights speed is constant why does it change in medium is special relativity violeted here ?
Sir, can you do+1physics classes plz🥰🥰❤️🙏
🙏🙏
Sir,, My question is,, the Unit of Torque is N-m ,, can we Say it,, Joule??? Plzz tell sir🙏🏻🙏🏻🙏🏻
torque is a vector quantity but work is a scalar quantity .So we cannot have the unit of torque as joule.
Sir, I am a student of class 11. I have a doubt from the chapter 'Work and Energy' which is given in your book. Two charged particles A and B repel each other by a force k/r^2, where k is a constant and r is the separation between them. The particle A is clamped to a fixed point in the lab and the particle B which has a mass m, is released from rest with an initial separation r0 from A. Find the charge in the potential energy of the two particle system as the separation increases to a large value. What will be the speed of the particle B in this situation?
Use conservation of energy
Force is given so du= fdx so energy is k/r
So k/(r1-ro) = 1/2 mv^2
Sir please tell about next round of naest
Hello sir,I am a student of 11th standard .And I am suffer with a lots of problems because of physics.My basic are still not clear whatever the topic belongs to lower classes.Sometimes,I feel that I am depressed but I can't get depressed sir..I don't want to loose this battle of life .
Whenever I am studying physics ,I get distract because my concepts are gonna mixup then I take another subject for study.I want to make a proper schedule of physics ,I want to become a good student in physics also.I know that I am able to become a professor in physics I just want to be more than average student.
Sir,please tell me what I do or not??Day by day it is become tough for me.
😶Please !give a solution in your way
concept clear kro youtube se extra time do physics ko and practice kro questions....pehle 11th ke level tak aao concept clear krke
1.Bhai sabse pehle social media delete kar de,
2. Koi acche teacher se padh koi didi bhaiya se nhi jo khud hi confused ho,
3. Book mat likh apni language me notes aur [short notes bna (only important formula and diagram)]
4. solutions aur methods ko yaad mat kar concept samjhne ki koshish kar, yaad karenga toh bhul hi jaayega.( Derivation, Formula, short tricks kar Lena )
5. Practice.....
I think that in motional emf magnetic force can act on that chaarge particle because here charge particle is moving due to v and we know that magnetic force can act on moving chagre
Sir, I am really curious to know about the Higgs boson and Higgs field but couldn't understand about it really well. Could you please explain it in a video
You have to read this in MSc in physics.. if you are a high school students then it can be very challenging
Sir I am ABHISEK, I have a question of which I didn't get the answer from anywhere
The question is, " WHY PARALLEL FIELD LINES WITH DIFFERENT DISTANCE BETWEEN THEM, CAN'T EXIST ??"
please pick the question sir.
@@jsaifi7402 frm where r u?
@@jsaifi7402 your statement is partially wrong
Hello sir I have a doubt from refraction
I am a student of class 10
My doubt is that Is 100% refraction possible through glass slap when the light falling on the slab is perpendicular or it is falling parallel to normal or is it possible if it is falling obliquely also?
Hi I am from tenth as well, any material does not refract or reflect some of the light. Ideal material does not exist and we can only imagine it.
Sir in a circuit with two resistors sum of voltages of two resistors is equal to Voltas of battery but when we remove one resistor then the voltage of one resistor is equal to voltage of battery here voltage of a resistor increases but current remains same this contradict a ohms law that voltage is proportional to current because in this case voltage of first resistor increases but current remain constant
Please sir give me a answer of this question
Sir myself Rahul from mumbai i had a quation that if we take a magnet it has a magnetic field which travels to north pole to south
So my question is that
If a single charge (+ve)moves and crate a magnetic field then where the lines of force go
I mean that in a permanent magnet's lines of force go from north pole to south
Since we know that positive charge lines of force comes outwards
Then what about a single charge?
uni pole is not possible.
always there is pair of poles we say that as dipole
Magnetic moment
Magnetic monopoles never exist
Sir does this mean due to constraint magnetic field is doing work
I get emotional after solving questions of motional emf
H C Verma sir 👍
Sir I have a question,
We know that blackhole absorbs light
Because of its gravitational force, but mass of Photon is zero and according to
Newton's Universal law of gravitation, net force between blackhole and Photon is zero then how can blackhole attract photons towards itself? Is blackhole violets the law of Newton?
@@jsaifi7402 no brother they don't hv any mass neither rest mass nor relativistic mass and if they will have mass then by going through SPEED OF LIGHT their mass will become infinity and not remain 0
Yessss
shivendu sir from physics wallah also explained in same way 😍😍
Sir HV verma 2nd pard hindi me kab aayega??°🙏
thankyou sir for explaining
Always welcome
@@hcverma2928 sir please reply my question
Sir , I am studying in class 12 . I have a doubt in AC chapter . The question is regarding on AC circuit containing only an inductor having I= Io sin( omega t -π/2) why ??? (Omega t + π/2 ). PLZ CLEAR IT !!!!!!!!!!!!!!!!!!!!!!!!!
👌👌👌
Sir, I have a doubt in Einstein's photoelectric theory that if we have a photon and it removes electron, it generates current. Then can we say that a magnetic field is also generated?
Sir, Please Explain about V(Potential Difference), I (Current) and R(Resistance) that why It failed with the formula of P(power) =I²R
From this equation p is directly proportional to the R
But it's not correct
Please explain about it Sir?????
#SHANKA SAMADHAN
Sir I have a doubt. If we define electric current as a rate of flow of charge then why electric current is a fundamental quantity not electric charge.
Sir,I want to ask a doubt can you please clarify it still bugging me since the starting of the chapter: @* Let's consider ,we had a sphere which was screened from inside, there was only given a incident ray striking the upper part of sphere perpendicular. I,don't know the direction of reflected ray.So,can I say at point of incidence I can draw multiple normals?*(only direction of incident ray was given).
I will be pleased if you help me with this, thank you.
So, can I draw my normal from any side of the incident ray which join with center of sphere then I can have my reflected ray?
Thankyou very much,but what if we have a sphere having screened totally from inside then same will be applied right?
@@jsaifi7402 yeah,it means polished.
@@jsaifi7402 Thank you,very much for letting me understand.
Are u teacher or student ?
sir I am very curious to know about theory of relativity
But when I try to read it i cannot understand bcz i am 10th class student
sir I request plz tell me this by simplest way I shall be highly obliged to you 🙏🙏
Question is that =The length of one wire is perpendicular to the another wire ( they don't intersect each other)carrying current so first wire exert will exert force on second wire then the same force but opposite in direction exerted by Second wire on first?...
How lenz law is applicable in case of a transformer
Sir plzz explain the derivation potential energy of dipole in magnetic field
i think , i have to add a little more in the answer that is since we can extract energy from an motional e.m.f so it may seem to some one that there is a violation of law that is magnetic force gives us that energy but no actually the energy is coming from the motion of rod which is converting into electrical energy...
True
Hii sir i want to ask a question to yu - if we kick a football with our leg with force of 100Nweton then according to newton's third law of motion football should also apply 100 newton force to our leg. Then why we doesn't feel any hurt on our leg
Sir my name is Siddhant Jani , I have a very big doubt , however nobody answers my doubts. I study in class 10 and my doubt is of the chapter electricity. Sir we should assume a circut with battery and a wire. So sir if the resistence of the wire is infinite then no current can pass through the wires.Now sir as we go on decreasing the resistence of the wire( By changing the wires) we find that more current can flow to the circut. And as the resistence of the wire starts to approach towards zero , moreand more current can pass through the wire. Now sir in a video you had cleared the doubt of a student( current with no potential difference) where u had stated that the wires are so thick that we assume the resistence as zero(In that case sir actually the potential difference was also not zero , since the resistence of the wire was not actually zero) due to which current flowed. Now sir back to my doubt IF THE WIRE ACTUALLY HAD THE RESISTENCE AS ZERO THEN THAT WOULD MEAN LITERALLY NO POTENTIAL DIFFERENCE ACROSS BATTERY AND HENCE ELECTRIC CURRENT WOULD NOT BE ABLE TO FLOW ( NO DIFFERENCE OF ENERGY OF ELECTRONS). SO SIR WHEN THE WIRES HAVE POTENTIAL DIFFERENCE OF ZERO AND INFINITE SAME PROPERTIES ARE SHOWN( NO CURRENT IS ALLOWED TO FLOW THROUGH THEM). BUT SIR AS WE INCREASE AND DECREASE THE RESISTENCE OF THE WIRES(POTENTIAL DIFFERENCE IS DIRECTLY PROPORTIONAL TO THE RESISTENCE) WE GET DIFFERENT PHYSICAL PROPERTIES OF THE WIRES. SO SIR AT 2 EXTREME CASES WE GET THE SAME RESULTS??? CAN U PLS EXPLAIN THIS . ALSO SIR I HAD ANOTHER DOUBT THAT IN SUPERCONDUCTORS THE THE RESISTENCE IS ACTUALLY ZERO , BUT STILL ELECTRIC CURRENT FLOWS THROUGH THEM . SIR IF RESISTENCE IS ZERO THEN THE P.D IS ALSO ZERO SO NO DIFFERENCE IN ENERGY OF ELECTRONS < BUT STILL ELECTRIC CURRENT FLOWS THROUGH SUPERCONDUCTORS. HOW?? SIR I THINK THE ANSWER TO THIS QUESTION WILL CLEAR MY PREVIOUS QUESTION. SIR IF POSSIBLE PLS CLEAR MY DOUBT SINCE NO ONE CLEARS MY DOUBTS.
@@jsaifi7402 If the potential difference across 2 ends is 0 then how can current pass through both the ends. (There needs to be a difference in energy in order for current to flow).Since the resistance is actually 0 , so there is no difference of energy in electrons , and hence how can electric current flow?? Potential difference across 2 ends is a must for electric current to flow.
@@jsaifi7402 But in superconductors the resistance is not actually zero. Its approaching towards zero. So when the resistance of a wire gradually tends towards zero , there is no energy required to move a charge. But if the resistance actually becomes 0 then how can current flow. because v/i = r and similarly v/r = i. Now as the resistance decreases the current flowing increases, but the current only increases till when the resistance is approaching towards 0.However this does not happen when the resistance is actually 0. you should know that when u divide any number with 0 u dont get infinity. So that is my question. See there is a difference in saying the resistance is 0 and is approaching towards 0. Also u are already assuming that current flows when the resistance is actually 0 . See when the resistance is actually 0, flowing of current is not possible only. See when u divide by 0 u dont get an answer. (v/r = i)Similarly when the resistance is actually 0(v/0) , how can current flow in the first place. and when the resistance is infinity then also no current can flow. So there is a similarity in characteristics of a wire when the resistance is 0 and when its infinity. So at 2 extreme cases we get the same results???Pls explain this
@@jsaifi7402 Lets assume that the resistance of a wire is 0. See you have also stated that v/0 = undefined. So when the resistance is 0 (v/0 = i). Now according to you there will be current flowing through the wire if the resistance is 0. If we assume that some current flows through the wire then this equation (v/0 = i) cannot be satisfied. But u might argue that v(potential difference) would be zero bec i considered the resistance as 0. ( and v/i = r)(you are right when the resistance is 0 the potential difference would also be 0)That would give us 0/0 = i.(v/r = i)( v = 0 , i = 0) Now logically 0/0 can actually be anything.( if 0/0 = 1 then 1 x 0 = 0, 0/0 = 2, 2x 0 = 0) , so 0/0 can actually be anything. This actually means that when current flows through a wire with 0 resistance the current is not defined. So the current flowing through the wire can be 1ampere , 2 ampere 3 ampere , but can also be 0 ampere. So lets consider one case when the resistance of a wire is 0 ohms , and the current flowing is 0 amperes( I am not saying that the current will always be 0 when the resistance is 0)(But there will be 1 case in which the current flowing through the wire will be 0). Also when the resistance is infinite the current flowing through the wire would be 0. So there is a similarity in characteristics of a wire when the resistance is 0 and when its infinity.So at 2 extreme cases we get the same results??? Now you might argue that 0/0 is undefined and not any number. So i would like to ask YOU what is the current when the resistance of a wire is actually 0. Because when u say that the current is undefined what do you actually mean. It means that the current is not defined, meaning the current could be anything and it does not have a definite or fixed value.
* Also i would like to say one more thing . When the potential difference across 2 ends is 0 CURRENT CANNOT FLOW BETWEEN 2 ENDS. YOU MIGHT ARGUE THAT THIS ISNT TRUE WHEN THE RESISTANCE ACROSS 2 ENDS IS 0. BUT TO THAT I WOULD REPLY THAT WHEN THE POTENTIAL DIFFERENCE ACROSS 2 ENDS IS 0 THE RESISTANCE ACROSS THE 2 ENDS IS ALSO ACTUALLY (ALWAYS) 0. SO BY SAYING THAT ELECTRIC CURRENT WOULD FLOW WHEN THE RESISTANCE ACROSS 2 ENDS IS 0 YOU ARE SAYING THAT WHEN THE POTENTIAL DIFFERENCE ACROSS 2 ENDS IS 0 ,CURRENT WOULD ALWAYS FLOW .( WHEN THE POTENTIAL DIFFERENCE IS ALWAYS 0 THE RESISTANCE ACROSS 2 ENDS WOULD ALSO ALWAYS BE 0) BUT WE KNOW THAT CURRENT DOES NOT FLOW WHEN THE POTENTIAL DIFFERENCE ACROSS 2 ENDS IS 0.OK FINE LETS CONSIDER 1 CASE (ONLY 1) WHEN THE POTENTIAL DIFFERENCE ACROSS 2 ENDS IS 0 AND HENCE THE CURRENT DOES NOT FLOW. IN THIS CASE THE RESISTANCE WOULD ALSO BE ZERO(V/I = R). SO WE HAVE PROVED THAT IN 1 CASE WHEN THE RESISTANCE IS 0 , CURRENT DOES NOT FLOW. AND NOW AGAIN I AM ASKING THE SAME QUESTION
@@jsaifi7402 I understand what you are trying to say , and you are not completely wrong.However I am not fully convinced by your 3rd point. See you yourself have proved that 0/0 can be anything. You said that there was no battery and a resistor of 10ohms. Here the current would obviously be 0. So v/i = r. here v=0 , i = 0, r is 10ohms , so 0/0 = 10. Similarly here the resistor could have any resistance. Now we can also take v/r = i , if the resistance is 0 , the potential difference is 0 , then the current can be anything. Even 0. Like in the previous case the resistance could be anything.
*BY THE WAY THE REFRACTIVE INDEX OF GLASS WHEN A RAY IS PASSED NORMALLY , IS NOT 0/0 , BUT ITS 1 ( sini/sinr) , sin90/sin90 = 1/1= 1. HERE ACTUALLY IN 1 CASE WE GET A DIFFERENT RESULT THAN OTHER CASES. IN ALL REST CASES THE REFRACTIVE INDEX OF A GLASS SLAB WOULD BE 1.5. BUT IN THE CASE WE ARE TALKING NOW , THE CURRENT PASSED THROUGH THE WIRE COULD BE ANYTHING. SEE YOU YOURSELF HAVE ALSO PROVED THAT 0/0 CAN BE ANYTHING.
-ALSO LAST BUT NOT THE LEAST , YOU SAID THAT R DOES NOT DEPEND ON V. HOWEVER THE V IS THE ENERGY PER UNIT CHARGE , SO IF MORE ENERGY IS REQUIRED TO MOVE A CHARGE THAT MEANS THAT THE WIRE HAS MORE RESISTANCE. SO ACTUALLY RESISTANCE DOES DEPEND ON THE POTENTIAL DIFFERENCE. NOW IN THE CASE YOU HAVE STATED , YOU HAVE ACTUALLY PROVED WHAT I WANTED TO PROVE. YOU HAVE CONSIDERED V = 0 , i = 0 , SO YOU SAID THAT THE RESISTANCE COULD BE ANYTHING AND EVEN 10 OHMS AND IT DOES NOT DEPEND ON V. BUT THAT IS EXACTLY MY POINT. V/R = i , WHEN V AND R ARE BOTH 0 , I COULD BE ANYTHING AND EVEN 0. SEE YOU CANNOT ACTUALLY DENY THIS , BECAUSE I HAVE USED YOUR EXAMPLE TO PROVE MY STATEMENT AND MY DOUBT.
THANK YOU
@@jsaifi7402 But what about your example where you yourself proved that 0/0 = 10 , u said there was no battery , so v = 0 , so i = 0 , so v/i = 0/0 , and you yourself said that the resistor could have any resistance , like you said that the resistance was 10ohms , so 0/0 = 10 , similiarly with respect to the chapter electricity 0/0 can be anything(the resistance could be anything)
Page 126 worked example 3 HC Verma new edition has a error in which
(2.00 kg)(9.8m/s²)(1/2) +1 is written 11.8
According to question solution is correct but printing is wrong
Sir please make a solution manual of your book (concept of physics 1 and 2)
hello sir good morning 🌄
Hello sir,
I wanted to ask a question.
Let's say There is an object which is half dipped in a bucket filled with water and it's shadow can be seen inside the bucket as light is falling from the front. But we can only see that part of shadow of the object which above the surface of water i.e in air and the part which is completely immersed in water. We cannot see that part in shadow which is present exactly at the interface of both media (air and water).The shadow appears to be break as no shadow has been formed at the interface. Why?
Sir I don't understand theory of book Concept of Physics what to do
Sir, are path difference and phase difference always positive????
How are you sir ☺️
Sir can you please say me that the potential difference is same between any two points of a conductor???
No
Sir Newton's ka action reaction pair magnetism me shayad break hota hai.
Question:-
One x axis ke parallel wire hai
Uske perpendicular ek wire hai
And under Jane wali magnetic field hai.
Sir usme mujhe eisa lag raha hai ki Newton ka action reaction wala rule shayad break ho raha hai
Can u please elaborate your question.
🎯
When potential is a scalar function then how a vector potential can be defined ?
sir why the current is always same in series combination?
Mastermind🙏
सर दो लेंस से दो फोटो बनता है तो हमारे आंखों में दो लेंस है लेकिन एक फोटो क्यों बनता है??
Sir what are the difference between resistance and resistivity
Thanks sir
Sir how we can say that electrostatic force is stronger than gravitational force. As they are totally different things. First one is due to charge and second one is due to mass. Then how we can compare these two different forces. I am confused please answer me.
hello sir
this is a very basic question but can you explain the exact function of a galvanometer, what does it show and what do its deflections indicate
The deflection in galvanometer just indicates that a current is passing through it. It can also show what's the direction of current in the circuit. It works on the principle of "torque on a current carrying coil in a magnetic field".
Using same principle, you can convert a galvanometer into ammeter and voltmeter.
Sir i really want to meet you....
Sir maine bhi ek doubt bheja h, please reply it.
Hello sir, I am a student of class 8. I have a doubt related to energy: Hypothetically, imagine a stone on the top of a hill. No force is acting on that stone and the stone isn't acting against any forces, yet it is still there. Even though there is a height, no work was ever done on it to bring it to that state of position. Will the stone have potential energy?
Will we take the height as 0 or not?
Please solve the doubt Sir.
Thank you
Yes , because by Einstein theoram energy is directly proportional to to the mass and the stone is kept on the top a hill it means it has a some height of energy which we called potential energy but in case if we falling freely this stone from this height then it comes in some motion having some moving velocity
and in this phenomenon potential energy is decreasing and by come into the motion having velocity it will be covert in to kinetic energy because height will decrease
Clear that the height of potential energy we take from the earth surface not from the hill
Sir my name is nihal verma from class 9th i want to know about properties of sound deeply 🙏
Hello Professor 😀
Sir my concept on statics (physics) is not so clear can you pls clear that.
Hi sir , I am jee aspirant if I had any doubt can I ask it in comments section???
Sir can you please explain the Potential energy of class 9
Namaste sir
My name is YUGRATNA
I am from Bihar
My question is
Q)Why we use gravity to find force and also gravity?
Sir ,,, what is displacement current
the current that is created due to changing electric field,for example in charging of a capacitor when its not completely charged to its capacity there is a constant change in the charge getting stored and hence the electric field changes and the change in electric field causes a varying magnetic field which causes displacement current.This is in support of the fact that changing electric fields cause magnetic fields.In the space between the capacitor the amperes circuital law did not provide any magnetic field because the current there was 0.To overcome the inconsistency of no magnetic field being there a current was established between the plates of the capacitor.