MP Board · Class 10 · Science · ElectricityDefine electric potential difference between two points in an electric circuit.

Electric potential difference between two distinct points in an active electric circuit is formally defined as the amount of external work done required to move a single unit of positive electric charge from one designated point to the other designated point. Mathematically, the potential difference V is calculated by dividing the total work done W by the magnitude of the moving charge Q. The standard SI unit used to measure electric potential difference is the volt, named in honor of the pioneering Italian physicist Alessandro Volta. One volt of potential difference means that exactly one joule of work is continuously required to move one coulomb of charge between the two points.