Three concentric metallic spherical shell A,B and C or radii a,b and c(a lt b lt c) have surface charge densities -sigma, + sigma and -sigma. Respectively. The potential of shel A is :

Three concentric metallic spherical shell A,B and C or radii a,b and c

1.	Three concentric metallic spherical shell A,B and C or radii a,b and c(a lt b lt c) have surface charge densities -sigma, + sigma and -sigma. Respectively. The potential of shel A is :
Answer» `(sigma//epsilon_(0))(a+b-C)` `(sigma//epsilon_(0))(a-b+c)` `(sigma//epsilon_(0))(a-b-c)` none Answer :C

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Three concentric metallic spherical shell A,B and C or radii a,b and c(a lt b lt c) have surface charge densities -sigma, + sigma and -sigma. Respectively. The potential of shel A is :

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