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Two conducting, concentric, hollow spher...

Two conducting, concentric, hollow spheres A and B have radii a and b respectively, with A inside B. Their common potential is V. Now, A is given some charge such that its potential becomes zero the potential of B will now be

A

0

B

`V(1-a/b)`

C

`(Va)/b`

D

`V((b-a)/(b+a))`

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The correct Answer is:
B
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