- An equipotential surface is an imaginary surface on which every point has one and the same value of electric potential. It can be curved or plane surfaces.
- No work is done in moving any charge over an EPS.
- Electric field is always ⊥ to EPS.
- EPS tells us about direction of electric field.
- EPS helps to distinguish regions of strong field from that of weak field. As the separation between two equipotential surfaces is more, where the field is weak & vice – versa.
- No EPS can intersect each other.