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Three concentric metallic spherical shel...

Three concentric metallic spherical shells `A,B` and `C` of radii `a,b` and `c(a lt blt c)` have surface charge densities `-sigma ,+sigma `and `-sigma` respectively ,the potential of shell `A` is

A

`sigma/epsi_(0) [(b^(2)-c^(2))/b+a]`

B

`sigma/epsi_(0) [(b^(2)-c^(2))/c+a]`

C

`sigma/epsi_(0) [(a^(2)-b^(2))/a+c]`

D

`sigma/epsi_(0) [(a^(2)-b^(2))/b+c]`

Text Solution

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The correct Answer is:
D
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