Direction of electric field on the equipotential surface is always
Parallel to the surface
At an angle of 45º to the surface
Normal to the surface
At an angle of 30º to the surface
Electric field is always normal to the equipotential surface at every point.
Two charges 2 μC and −2 µC are placed at points A and B 6 cm apart.
(a) Identify an equipotential surface of the system.
(b) What is the direction of the electric field at every point on this surface?