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There are four concentric shells A,B, C ...

There are four concentric shells A,B, C and D of radii `a,2a,3a` and `4a` respectively. Shells B and D are given charges `+q` and `-q` respectively. Shell C is now earthed. The potential difference `V_A-V_C` is `k=(1/(4piepsilon_0))`

A

`(Kq)/(2a)`

B

`(Kq)/(3a)`

C

`(Kq)/(4a)`

D

`(Kq)/(6a)`

Text Solution

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The correct Answer is:
D
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