Home
Class 11
PHYSICS
Two connectric spheres of radii R and r ...

Two connectric spheres of radii `R` and `r` have similar charges with equal surface charge densities `(sigam)`. The electric potential at their common centre is

A

`sigma//epsilon_(0)`

B

`(sigma)/(epsilon_(0)) (R-r)`

C

`(sigma)/(epsilon_(0)) (R+r)`

D

`(sigma)/(4pi epsilon_(0)) (R +r)`

Text Solution

Verified by Experts

The correct Answer is:
C

Potential at centre is same as surface
`:.v=(sigmaT)/(epsilon_(0)) +(sigmaR)/(epsilon_(0))`
Promotional Banner

Similar Questions

Explore conceptually related problems

Two concentric spheres kept in air have radii R and r. They have similar charge and equal surface charge density sigma . The electrical potential at their common centre is (where, epsi_(0) = permittivity of free space)

A charge Q is distributed over two concentric hollow spheres of radii r and R (gt r) such that the surface charge densities are equal. Find the potential at the common centre.

Two conducting spheres of radii r_(1) and r_(2) are charged to the same surface charge density . The ratio of electric field near their surface is

A charge q is distributed over two concentric hollow sphere of radii a and b(bgtc) such that the surface densities are equal.Find the potential at the common centre.is

A charge 'Q' is distributed over two concentric hollow spheres of radii 'r' and 'R' (gtr) such that the surface densities are equal. Find the potential at the common centre.