Describe schematically the equipotential surfaces corrsponsing to
a single positive charge at the origin
Use the concept that the equipotential surface is always normal to the direction of electric field.

Describe schematically the equipotential surfaces corrsponsing to a constant electric field in the z-direction, Use the concept that the equipotential surface is always normal to the direction of electric field.

Draw an equipotential surface in a uniform electric field.

The angle between electric line of force and equipotential surface is

Why the surface of an isolated charged conductor is an equipotential surface ?

What is the work done in moving a charge between two points on an equipotential surface?