A solid spherical conductor is given a charge. The electrostatic potential of the conductor is ?

A solid spherical conductor is given a charge. The electrostatic potential of the conductor is ?

(a) constant throughout the conductor

(b) largest at the centre

(c) largest on the surface

(d) largest somewhere between the centre and the surface

Answer :  (a) constant throughout the conductor

To be noted, charges can be filled inside a 3D object such as solid sphere only in an insulator and not in a conductor, due to the fact that the charges will move away from each other and go to the surface.