An equipotential surface must be

Question

Quizplus · Accepted Answer

Equipotential surfaces are defined as a surface in which every point on the surface is at the same electric potential. Therefore, the electric field lines must be perpendicular to the equipotential surface, as the electric field points perpendicular to the surface at every point. If the electric field lines were parallel to the surface, then there would be a potential difference between different points on the surface, and it would not be an equipotential surface.

An Equipotential Surface Must Be