Which of the following is correct for equipotential surfaces?

(A) Electric field lines are always perpendicular to equipotential surfaces.
(B) Equipotential surfaces are always spherical in shape.
(C) Work done in moving a charge on equipotential surface is always negative
(D) Two equipotential surfaces never intersect each other
(E) Workdone in moving a charge on equipotential surface is always zero

Choose the correct answer from the options given below:

(A), (D) and (E) only

The correct answer is Option (4) → (A), (D) and (E) only

$E_1$ and $E_2$ are equipotential surfaces, implying that the potential is same throughout the surface.

∴ Work done in moving a charge on equipotential surface is zero.

Properties of equipotential surface:

→ Two surfaces cannot intersect

→ Electric field lines are always perpendicular to the surface.