Match List-I with List-II for a charged solid spherical conductor in electrostatic equilibrium. List-I List-II A. Electric field inside I. ₀ B. Electrostatic potential inside II. Perpendicular to the surface C. Electric field magnitude at surface III. Zero D. Direction of electric field at surface IV. Constant (non-zero) Choose the correct answer from the options given below:

Step-by-step solution

In electrostatic equilibrium, the electric field inside a conductor is zero (A III). Because the electric field is zero inside, the electrostatic potential is constant throughout the volume and equals the value on the surface (B IV). The magnitude of the electric field just outside the surface of a charged conductor is ₀ (C I). The direction of the electric field at the surface must be perpendicular to the surface; otherwise, a tangential component would cause charges to move, violating electrostatic equilibrium (D