electric potential of these two points. If V A and V B represent the electric potential at the points A and B respectively, then, the potential difference between the points A and B is given by: V = V A – V B (if V A is more than V B ) V = V B – V A (if V B is more than V A ) . . Volt The SI unit of electric potential or potential difference is volt (V).
The potential difference between two points is one volt, if one joule of work is done in moving one coulomb of charge from one point to another against the electric force. 1volt =