Your channel is gold mine 🐹 it's equivalent to more than solving 3 good books , if we solve your all question and understand each and every quality concepts 🌚🌚
Why theta plus phi is taken as constant, what does it mean when at 8:35 - 8:44 you said "we don't want any work done by torque acting on the dipole?" I don't get it. Please someone explain. Thank you.
We want the net workdone on the system to be zero because there is no external force acting on the system. Now workdone by the torque about the center by f_theta is dw= f_theta*rd(theta)+f_theta*rd(phi)=0. So therefore the result
sir in the question we have already been given theta and phi, so shouldn't we directly write d(phi)/d(theta) as 0 bcs both are constant and unchanging?
He is basically taking ' negative gradient' of potential energy in polar cordinate system to find the force. And in it's formula partial derivatives come. So your first doubt is trivial. He is justifying how arc length traversed is rdtheta in angular direction to make it understand to +2 people but it is really a vector calculus part. It has come from mathematical definition of 'gradient (nebla) operator 'we use in vector calculus, in 1st year engineering. But Your second doubt is genuine though and i have same doubt as to why theta plus phi is taken as constant
For calculating the F(theta) component you have to do partial differentiation w.r.t theta only keeping phi const. So I don't think that the expression is correct.
Plz check the final results of three cases at the end of the video they won’t match if you keep phi constant , phi is variable here as well . Let me know if the final results derived here mismatch with any other dipole problem , will varify again in that case .
@@INSP_NITIN Sir I have a Doubt about the validity of the theta (cap) formula... Let's just take the second case itself ..here P2 is placed along theta (cap) and P1's electric field at the location of P2 is along r (cap) ...hence dot product of P2 and electric field due to P1 is zero....so potential energy is also zero...So shouldn't force be zero.....But for the second case if we plug in the values of theta and phi in your formulas r (cap) gives zero force but theta(cap) gives non zero force?? Please resolve this SIR......
@@jobbyjoseph3641 sorry dear this is not how you calculate for , just differentiating a constant isn’t a right approach . It’s like for a variable potential function if you calculate potential energy at a point by putting the values and getting a constant and then differentiation gives zero . Results and approach both are fine in the problem .
Nitin Sir is a True Physics Lover. Sir you are Thor of Physics. Btw Sir Which one should I refer. 1. University Physics(Quite easy for me) 2.Ressnick Halliday Walker original. 3.Resnick Halliday Walker by Amit Gupta ji. 4.Resnick Halliday Krane. I am easily able to understand foreign author books instead of Indian Author books.
sir to isko yaad kese kare?darawni eqn ko..............and dusra method ye h na ki ek dipole ki vajah se dusre pr E nikal le or phir kare??and sir dipole when summation of charges 0 hoga tab com vala case karenge to usme jo E hota h vo variable rahe to example sphere whose rho=rho(not)r(costheta) to us case me com vala funda nahi laga skte h na jese irodov ka 18th problem hai please batao sir????
![[JEE ADVANCED] COUPLED OSCILLATIONS OF INDUCTOR AND CAPACITOR [ ADVANCE PROBLEMS IN SCHOOL PHYSICS ]](http://i.ytimg.com/vi/4jNOYCNk3Do/mqdefault.jpg)
a more challenging version appeared in WoPhO 2012 Indonesia. It had magnetic dipole interactions..
Sir I'm waiting to join u live for class 12 , 2022 aspirant, Jee YOU'r THE BEST PHYSICS teacher with respect to my pear group
Anuska Khattar welcome 👍
TUM THO ISS BAAR boards de rhi hona ?xd
watching before 34 days of jee advanced sir..... channel ke sare videos dekh lunga next days me.... saari short tricks ko bhi :)
Your channel is gold mine 🐹 it's equivalent to more than solving 3 good books , if we solve your all question and understand each and every quality concepts 🌚🌚
True
Yes
Amazing lemma elegantly explained!
ha sir dnnn.. bhot zyada op tha... 3 baar dekhke raat liya.....
Ekdm aukaati video hai pure jee advanced Mzza aa gya
Very grateful to you sir for providing such quality content on both youtube and plus 🙏
Nitin Sir never stops to Surprise us with Great content!!! Thank You Sir!!!
Why theta plus phi is taken as constant, what does it mean when at 8:35 - 8:44 you said "we don't want any work done by torque acting on the dipole?" I don't get it. Please someone explain. Thank you.
I also doubt the same watching this video now😅
We want the net workdone on the system to be zero because there is no external force acting on the system. Now workdone by the torque about the center by f_theta is dw= f_theta*rd(theta)+f_theta*rd(phi)=0. So therefore the result
sir could elaborate more on why the sum of angles is constant???? LOVED the video, absolute banger
Yeah that's my doubt too, did you get the answer for this?
I want to know other cases also plz sir. Happy new sir....
Thanks will upload soon
THANK U SIR THIS QUESTIONS ARE TYPE OF RANK BOOSTERS FOR US , thank you love you
Nice sir..Thank you very much.
gazab gurudev dhanyawaad for this problem
4:17
Sir which class notes were you referencing to? Is there any way we can get them? We will be grateful sir
A N they are unacademy lectures notes , you can access them
Op concept sir. Thanks for bringing such great problems.
Searching for a long time for this content
Thanks a lot
SIR OP!!..very useful result..
Really loved the concept sir tqsm for this really amazing prblms 👍👍
Sir these applications u gave them as homework and this method shortened the method we used to use
Sir,your all problems are not seen any books!!! Those the gemstones...
Sir aapke videos ki comment section mai entropy badathu hun aur symmetry universe ka bigaadtha hun, kyunki mai saare comments ko like Kartha hun,. XD
sir in the question we have already been given theta and phi, so shouldn't we directly write d(phi)/d(theta) as 0 bcs both are constant and unchanging?
thankyou sir very nce concept
Thanks sir, you are the best!!
Great explaination sir!! Thank u !!!
This is very much helpful❤❤ thank u sir
Sir maine is question me phle force x pe nikal liya fir y pe nikal liya to us method se bhi ho skta hai na sir
Sir since we are taking partial derivatives.. shouldn't we take phi as constant?...and also I didn't understood why theta+ phi is constant..
I also have these Same two doubts 😕😕
He is basically taking ' negative gradient' of potential energy in polar cordinate system to find the force. And in it's formula partial derivatives come. So your first doubt is trivial. He is justifying how arc length traversed is rdtheta in angular direction to make it understand to +2 people but it is really a vector calculus part. It has come from mathematical definition of 'gradient (nebla) operator 'we use in vector calculus, in 1st year engineering. But Your second doubt is genuine though and i have same doubt as to why theta plus phi is taken as constant
Thanks Sir you are the best😊
Very helpful concept.
Thank you sir you are great
Op Problem Sir Thank You so much💗💗💗💗🙏🏼🙏🏼🙏🏼🙏🏼
Thank you sir this is just awsome more than awesome.
nice problem sir 👌💚😍
Sir I'm greedy about those dipole problems PLZ PLZ UPLOAD THEM SIR..PRANAM HAIN AAPKO GURUJI
thank you sir please make more videos like this , you always say toppers remember these formulae ill also try to do so
awesome video sir !!
Genius sir🎉🎉🎉
Nice
12:36 sirji ye image of dipole kyu liya tha aapnee plz batayege kyaa?
sir but why we are taking p2e as u we can take p1e=u also for simplicity so why we are taking p2 instead of p1 in the formula of interaction energy
Sir plz share how to solve another 15 cases in another video
Very Helpful .THANK YOU SIR : )
thnku sir.. here after champs class
sir ye F theta kya hai aur ye Fr aur F theta mein kya difference hai
Nice one
Op result sir Thank u for this explaination Your student Krishna From Ak 13th batch
Thank you Sir
Very nice
Thank you very much sir🥳🥳🥳🥳
Amazing sir 🔥🔥
Sir this Question is in Baby pathfinder also
Nitin sirs level starts from where other teachers level ends❤️❤️
😃😃
Good job
thanks a lot sir.....😇
Nycc sir question
Sir pls take one more problem solving session for gravitation 🙏
Alpha Beta there will be 2 more sessions on gravitation , will tell you once I plan for them
Thanks sir
Op video and greatly explained thank you sir
For calculating the F(theta) component you have to do partial differentiation w.r.t theta only keeping phi const. So I don't think that the expression is correct.
Plz check the final results of three cases at the end of the video they won’t match if you keep phi constant , phi is variable here as well . Let me know if the final results derived here mismatch with any other dipole problem , will varify again in that case .
@@INSP_NITIN Sir I have a Doubt about the validity of the theta (cap) formula... Let's just take the second case itself ..here P2 is placed along theta (cap) and P1's electric field at the location of P2 is along r (cap) ...hence dot product of P2 and electric field due to P1 is zero....so potential energy is also zero...So shouldn't force be zero.....But for the second case if we plug in the values of theta and phi in your formulas r (cap) gives zero force but theta(cap) gives non zero force??
Please resolve this SIR......
@@jobbyjoseph3641 sorry dear this is not how you calculate for , just differentiating a constant isn’t a right approach . It’s like for a variable potential function if you calculate potential energy at a point by putting the values and getting a constant and then differentiation gives zero . Results and approach both are fine in the problem .
@@INSP_NITIN Okay Sir thank you
woah sir.. u magician
Nitin Sir is a True Physics Lover.
Sir you are Thor of Physics.
Btw Sir Which one should I refer.
1. University Physics(Quite easy for me)
2.Ressnick Halliday Walker original.
3.Resnick Halliday Walker by Amit Gupta ji.
4.Resnick Halliday Krane.
I am easily able to understand foreign author books instead of Indian Author books.
University physics and krane anyday
@@INSP_NITIN Thank you Sir.
Pehle board wala kar lo. Wahan na fail ho jaana.
Sir plz attach a link of video where u have taught polar coordinates....
Sir plz its my humble request i want to master it asap.
Amazing
why was the perpendicular component (dy) to r vector taken as r d∅ when doing partial differentiation?
Because that was taken in teta cap direction and a small element in that is "r dteta"
Gem 💎💎 content
Thank you very much sir 👏 👏👏👏
Sir in this question you have directly taken thita + fi =constant
Dont you need to explain it in the question
Can anyone share unacademy notes of sir.
Sir if possible pls share the slides too btw amazing approach👏
how to get ur course un unacademy ??
Sir isn't the U=p.E valid only for dipoles in uniform electric field?
sab jagah valid hai ....abhi padhna band karo ... kal paper hai .
@@INSP_NITIN Ok Sir 😅
Amazing!!!
Thank you sirji🙂❤
sir to isko yaad kese kare?darawni eqn ko..............and dusra method ye h na ki ek dipole ki vajah se dusre pr E nikal le or phir kare??and sir dipole when summation of charges 0 hoga tab com vala case karenge to usme jo E hota h vo variable rahe to example sphere whose rho=rho(not)r(costheta) to us case me com vala funda nahi laga skte h na jese irodov ka 18th problem hai please batao sir????
Good video
thanku guruji 💞💞💞
Sir every week I plan to give combat but i have already schedule test at FIITJEE so sorry
Thank you sir 😊
Saw this in jee adv 2021 though 😳
Which question i didnt found itt
The same question is given in physics galaxy book.
bahut op sir
Sir in kvpy physics is the level of the questions same as u are taking..or bit easy...plz tell..sir I have my exam on 31st ..plz tell sir
It is easy bro.
KVPY will be much lighter
@@INSP_NITIN ok..ty sm sir
Sir, will we get the axial or equatorial position based sums only, or various orientations can come in JEE ADV?
Wht wtr rdtheta didn't get it
Very few teaches this I know , as many teachers even don't know.
Bow to you sir🙏
Similar concept was used in 2020 physics cup problem 1.
First view
Sir Is irodov enough for jee advanced ??
himanshu simaiya yes it’s a great book
Op sir . 💜
Op ♥️♥️👍
Nothing can match insp
DAMN
Op /\
Thank you sir
DAMN