A hollow spherical conductor having inner radius ‘a’ and outer radius ‘b’. A constant potential difference is applied across inner and outer shell. Due to which current flows radially select the correct statement :-

Question

G1 Physics · Accepted Answer

For radial current through a spherical shell, area A = 4πr² increases with r. Since I = nqAv(drift) is constant, v(drift) ∝ 1/r², so it decreases outward. Hence C.