Question

What is an equipotential line? What is an equipotential surface?

Short answer

A surface with the same potential at all points is known as an equipotential surface. Equipotential lines are the lines along which the potential is same at all points.

Step-by-step solution

Definition of Equipotential surface

On the equipotential surface, the potential has the same value at every point of the surface.

Definition of Equipotential line

If along a line the electron potential remains the same at all points, then it is called the equipotential line.

The equipotential surface is two-dimensional and equipotential lines are one-dimensional.