A potential field is shown by its equipotential surfaces. At point P, the electric field E is
Parallel to the equipotential surface passing through that point.
Parallel to the more positive equipotential surface.
Normal to the equipotential surface passing through that point and is directed towards equipotential surface of higher potential .
Normal to the equipotential surface passing through that point and is directed towards equipotential surface of lower potential .
Electric field is always normal to equipotential surface and directed from higher to lower potential .