Question

Let P(r) = (Q/(πR⁴))r be the charge density distribution for a solid sphere of radius R and total charge Q. For a point ‘p’ inside the sphere at distance r₁ from the centre of the sphere, the magnitude of electric field is

Answer 1

(c) : If the charge density, ρ = (Q/(πR⁴))r,

The electric field at the point p distant r₁ from the centre, according to Gauss’s theorem is