- Видео 1 063
- Просмотров 1 072 652
World of physics
Индия
Добавлен 15 июн 2015
Expert in physics
A long straight wire of circular cross section of radius ҅ a carries a steady current I.The current
A long straight wire of circular cross section of radius ҅a᾿ carries a steady current I. The current is uniformly distributed across its cross section. The ratio of magnitudes of the magnetic field at a point a/2 above the surface of wire to that of a point a/2 below its surface is
(A) 4:1 (B) 1:1 (C) 4: 3 (D) 3 :4
(A) 4:1 (B) 1:1 (C) 4: 3 (D) 3 :4
Просмотров: 28
Видео
a conducting wire connects two charged conducting spheres of radii r1 and r2 such that they attain
Просмотров 749 часов назад
A conducting wire connects two charged conducting spheres of radii r1 and r2 such that they attain equilibrium with respect to each other. The distance of separation between the two spheres is very large as compared to either of their radii. The ratio of the magnitudes of the electric fields at the surfaces of the spheres of radii r1 and r2 is
A uniform electric field pointing in positive X-direction exists in a region.Let A be the origin,B
Просмотров 4514 часов назад
A uniform electric field pointing in positive X-direction exists in a region. Let A be the origin, B be the point on the X-axis at x = 1 cm and C be the point on the Y-axis at y = 1 cm. Then the potential at points A, B and C satisfy.
Find the currents flowing through the branches AB and BC in the network shown/cbse2024 physics paper
Просмотров 14214 дней назад
Find the currents flowing through the branches AB and BC in the network shown/cbse2024 physics paper
Differentiate between nuclear fission and fusion/fission properties of 94Pu239 are similar to 92U235
Просмотров 762 месяца назад
Differentiate between nuclear fission and fusion. (b)The fission properties of Pu239 are very similar to those of 92U235. How much energy (in MeV), is released if all the atoms in 1 g of pure 94Pu239 undergo fission? The average energy released per fission is 180 MeV
Define distance of closest approach/derive expression for distance of closest approach
Просмотров 732 месяца назад
Define distance of closest approach/derive expression for distance of closest approach
Draw graph showing variation of scattered particles detected N with scattering angle Geiger-Maraden
Просмотров 1463 месяца назад
Draw the graph ahowing variation of scattered particles detected (N) with the scattering angle theta in Geiger-Maraden experiment. Write two conclusions that you can draw from this graph. Obtain the exprension for the distance of closest appronch in this experiment.
Two long insulated straight wires carrying currents of 3A and 5A arearranged in XY plane as shown in
Просмотров 3833 месяца назад
Two long insulated straight wires carrying currents of 3A and 5A are arranged in XY plane as shown in B. figure. Find the magnitude and direction of net magnetic field at points P1(2 m,2 m) and P2(-1 m,I m)
A thin spherical conducting shell of radius R has a charge q.A point charge Q placed centre of shell
Просмотров 4283 месяца назад
A thin spherical conducting shell of radius R has a charge q. A point charge Q is placed at the centre of the shell.Find (1) The charge deneity on the outer surface of the shell and (2)the potential at distance of R/2 from the centre of the shell
CBSE 2024 CLASS 12 PHYSICS PAPER SOLUTION/PHYSICS 2024 PHYSICS 2 MARKS QUESTIONS/2024 CBSE PHYSICS
Просмотров 1093 месяца назад
CBSE 2024 CLASS 12 PHYSICS PAPER SOLUTION/PHYSICS 2024 PHYSICS 2 MARKS QUESTIONS/2024 CBSE PHYSICS
Draw the circuit diagram of a p-n junction diode in(i) forward biasing and (ii) reverse biasing I-V
Просмотров 1103 месяца назад
Draw the circuit diagram of a p-n junction diode in (i) forward biasing and (ii) reverse biasing. Also draw its I-V characteristics in the two cases.
Two wires A and B of different metals have their lengths in ratio 1: 2 and their radii in ratio 2: 1
Просмотров 2703 месяца назад
Two wires A and B of different metals have their lengths in ratio 1: 2 and their radii in ratio 2: 1 respectively. I-V graphs for them is shown in the figure. Find I the ratio of their (a) Resistances (RA/RB) and (ii) Resistivities (sigma A/sigma B )
A ray of light is incident normally on one face of an equilateral glass prism of refractive index
Просмотров 3193 месяца назад
19. A ray of light is incident normally on one face of an equilateral glass prism of refractive index . When the prism is completely immersed in a transparent medium, it is observed that the emergent ray just grazes the adjacent face. Find the refractive index of the medium.
What are matter waves? A proton,an electron and an Alfa particle have same kinetic energy.de Broglie
Просмотров 883 месяца назад
What are matter waves? A proton, an electron and an a-particle have the same kinetic energy. Write the de Broglie wavelengths associated with them in increasing order.
In normal adjustment, for a refracting telescope,distance between obiective and eye piece lens is 1m
Просмотров 1503 месяца назад
In normal adjustment, for a refracting telescope, the distance between obiective and eye piece lens is 1.00 m. If the magnifying power of the telescope is 19, find the focal length of the objective and the eyepiece lens.
17 a) An air bubble is trapped at point B(CB =20 cm)in glass Sphere radius 40cm refractive index1.5
Просмотров 4703 месяца назад
17 a) An air bubble is trapped at point B(CB =20 cm)in glass Sphere radius 40cm refractive index1.5
paper solution physics class 12/class 12 cbse board 2024 physics paper solution/cbse board class 12
Просмотров 1023 месяца назад
paper solution physics class 12/class 12 cbse board 2024 physics paper solution/cbse board class 12
An ac source V=282 sin (100 t) volt isconnected across a 1 microfarad capacitor.rms value of current
Просмотров 1263 месяца назад
An ac source V=282 sin (100 t) volt isconnected across a 1 microfarad capacitor.rms value of current
The radius (rn) of nth orbit in Bohr model of hydrogen atom varies with n/Bohr’s radius/2024 physics
Просмотров 553 месяца назад
The radius (rn) of nth orbit in Bohr model of hydrogen atom varies with n/Bohr’s radius/2024 physics
The phase difference between electric field E and magnetic field B in an electromagnetic wave x axis
Просмотров 994 месяца назад
The phase difference between electric field E and magnetic field B in an electromagnetic wave x axis
A particle of mass m and charge q is moving with velocity v=Vxi +Vyj If it is subjected to a B=Boi
Просмотров 3384 месяца назад
A particle of mass m and charge q is moving with velocity v=Vxi Vyj If it is subjected to a B=Boi
A circular loop A of radius R carries current I.Another circular loop B of radius r=R/20 concentric
Просмотров 5494 месяца назад
A circular loop A of radius R carries current I.Another circular loop B of radius r=R/20 concentric
The magnetic susceptibility for a diamagnetic material is small and negative/2024 cbse physics paper
Просмотров 644 месяца назад
The magnetic susceptibility for a diamagnetic material is small and negative/2024 cbse physics paper
The Coulomb force (F) versus (1/r2) graphs for two pairs of point charges (q1 and q2) and q2 and q3
Просмотров 1,3 тыс.4 месяца назад
The Coulomb force (F) versus (1/r2) graphs for two pairs of point charges (q1 and q2) and q2 and q3
Three point charges, each of charge q are placed on vertices of a triangleABC, with AB=AC=5L,BC= 6L
Просмотров 4174 месяца назад
Three point charges, each of charge q are placed on vertices of a triangleABC, with AB=AC=5L,BC= 6L
Twenty seven drops of same size are charged at 220 V each.They combine to form bigger drop potential
Просмотров 1364 месяца назад
Twenty seven drops of same size are charged at 220 V each.They combine to form bigger drop potential
Two charged spherical conductors of radius R1 and R2 are connected by a wire.ratio of surface charge
Просмотров 1414 месяца назад
Two charged spherical conductors of radius R1 and R2 are connected by a wire.ratio of surface charge
Six charges +q,-q,+q,-q,+q and -q are fixed at corners of a hexagon of sided shown figure work done
Просмотров 6564 месяца назад
Six charges q,-q, q,-q, q and -q are fixed at corners of a hexagon of sided shown figure work done
electrostatics cbse board important/electric charges and fields NEET problems/NEETpyqs/NEEnumericals
Просмотров 584 месяца назад
electrostatics cbse board important/electric charges and fields NEET problems/NEETpyqs/NEEnumericals
An electric dipole is placed as shown in the figure.The electric potential (in 10^2V) at point P due
Просмотров 2364 месяца назад
An electric dipole is placed as shown in the figure.The electric potential (in 10^2V) at point P due
Thank you sir
Why Tera nukar hai kya sir
Thank you so much sir ☺️☺️💟☺️☺️💟☺️☺️💟☺️
Thank you sir❤
Sir ur way of teaching is too good and easy keep going sir ❤️
Thank you sir from punjab
Ee kese hua
Good effort ❤
🎉🎉🎉🎉
❤
❤❤❤❤❤
They repel each other ✅
Thank you sir 🙏
Sir board pe padhao ache se samaj aata hai
love you sir ❤
Thanku sir
Thank you sir so much
Nice explanation sir ❤
Sir great explanation 😊👍👍 Can you please make video or solve one question for me please A Galvanometer can be converted into a voltmeter to measure up to (a) V volt by connecting resistance of 2k ohm in series with the galvanometer (b) 2V volt by connecting to a resistance of 5K ohm in series with the galvanometer Calculate the resistance that should be connected in series with the galvanometer to convert it into a voltmeter to measure up to V/2 volt
Thank u sir
Very Fantastic Explanation sir..🗿👍🏻🇮🇳🙏🏻✅ ..... ..... Need a Physics man like you... Upload More other SQP questions......❤💖🇮🇳🛐
Sir i got 98 marks in physics 🎉❤❤❤❤❤❤❤
Very good Best wishes to bright future
Upon ❌ Pan ✅
😀😀
Aur cot ki jagah tanTheta hoga
Isme Cot hi hoga ap fir check kar lijiye axis k hisab se hota h cot ya tan
Sir answer galat he graph 1/R ka he Ra upon Rb nahi Rb upon Ra hoga
Faltu
Batane ke liye sukriya
This is a jee main question ❓❓❓❓
Ye CBSE sample paper ka question h
Sir very good explanation 🎉🎉🎉
Thanks a lot
Sir, for this queations many have taken answer as 5root 3 ie option A... I also got ur answer sir.. I have gone through many guides also for the same question including oswal... There also option A is ticked as correct one. What to do sir😢..
thanks sir..
Two conductors, made of the same material have equal lengths but different cross-sectional areas A1and A2 (A1 >A2). They are connected in parallel across a cell. Show that the drift velocities of electrons in two conductors are equal. SIR PLEASE SOLVE THIS QUESTION
Thank u sir
Great sir.. ❤ thank you 😊
Thanks
❤❤❤thanku so much sir
In series, how we see voltage is same
2:21 electron k lea flemming right hand rule use nai hota? I m confiused plz reply ❤
Flemming right hand rule for only positive charge Electron is negative so direct use nhi karna h
Thank you sir
Simple and nice explanation❤❤❤❤❤
Thank you 🙏🏻sir
Thank you so much sir ☺️☺️
❤❤❤❤❤
If you asked to find the acceleration between t=0 to t=30s?
Thanku sir😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊
Muje Google se bhi nahi mila ye question
Kon si book me se kara he sir Rajiv me se kara he kya
🎉
Thank you sir
Thanks 👍🏼
Thank you so much sir❤❤