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A small conducting spherical shell with ...

A small conducting spherical shell with inner radius a and outer radius b is concentric with a larger conducting spherical shell with inner radius c and outer radius d. The inner shell has total charge +2q, and the outer shell has charge +4q. (K=(1)/(4piepsilon_(0)))

Find the electric in terms of q and the distance r from the common centre of the two shells for `r gt d`.

A

0,0

B

`+q, - q`

C

2q, -2q

D

`-q, q//2`

Text Solution

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The correct Answer is:
A
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