CBSE · Class 10 · Science · ElectricityWhat is electric power? Write its SI unit.

Electric power is defined as the rate at which electrical energy is consumed or dissipated in an electrical circuit. It represents the work done per unit time by a source of electricity in maintaining current. Power P is given by the product of potential difference V and electric current I, expressed as P = V * I. It can also be written in terms of resistance as P = I²R or P = V² / R. The SI unit of electric power is the watt (W), named after the inventor James Watt. One watt of power is consumed when one ampere of current flows through a circuit with a potential difference of one volt.