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A charge Q is uniformly distributed over...

A charge Q is uniformly distributed over the surface of two conducting concentric spheres of radii R and r (Rgtr). Then, potential at common centre of these spheres 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

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The correct Answer is:
B
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