A line of force intersects at…….. Degreee with an equipotential surface.

Define equipotential surface.

Why electric lines of force are always perpendicular to the equipotential surface ? Explain.

Give two properties of equipotential surface.

The amount of work done in moving a charge from one point to another in an equipotential surface is _____ ?

Correct the following statement. Work has to be done in moving a test charge from one point to another on an equipotential surface.

Two point charges +10muC and -10muC are separated by a distance of 40cm in air. Draw an equipotential surface for the system.