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A charge Q is distributed over two conce...

A charge Q is distributed over two concentric conducting thin spherical shells radii r and R `(R gt 1)` . If the surface charge densities on the two shells are equal, the electric potential at the common centre is:

A

`(kQ(R+r))/(Rr)`

B

`(kQ(R+r))/(R^2+r^2)`

C

`(kQ)/(sqrt(R^2)+r^2)`

D

`kQ(1/R-1/r)`

Text Solution

Verified by Experts

The correct Answer is:
B
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