A charge Q is distributed over three concentric spherical shells of radii a, b, c (a

Question

A charge Q is distributed over three concentric spherical shells of radii a, b, c (a < b < c) such that their surface charge densities are equal to one another. The total potential at a point at distance r from their common centre, where r < a, would be:

Accepted Answer

(D)

JEE Main 2019 Physics question

Solution