A number of spherical shells of different radii are uniformly charged to same potential. The surface charge density of each shell is related with its radius as
(A) σ ∝ 1/R2
(B) σ ∝ 1/R
(C) σ ∝ R
(D) σ is same for all
Correct Answer is: (B) σ ∝ 1/R