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Two concentric spheres of radii R and r...

Two concentric spheres of radii R and r have similar charges with equal surface densities `(sigma)` What is the electric potential at their common centre /

A

`sigma//epsilon_0`

B

`sigma/epsilon_0 (R-r)`

C

`sigma/epsilon_0 (R+r)`

D

None of these

Text Solution

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The correct Answer is:
C
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