CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

The three concentric conducting spherical shells of radii R,2R and 3R carry charges Q,−2Q and 3Q respectively. The total electrostatic energy stored in the system

A
Q210πϵ0R
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
Q24πϵ0R
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
Q2πϵ0R
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
Q22πϵ0R
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B Q24πϵ0R
The net electrostatic potential of the system,

Vnet=kQR2kQ2R+3kQ3R=kQR

Also, net charge of the system,

qnet=Q+(2Q)+3Q=2Q

Now, potential energy of the system,

U=12qnetVnet=12(2Q)kQR=kQ2R=Q24πϵoR
<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}-->

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Electric Potential Due to Uniformly Charged Spherical Shell or Solid Sphere
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon