In what unit is power measured?

Power is measured in Watts. This unit quantifies the rate at which electrical energy is transferred or converted in a circuit. One Watt is defined as one Joule per second, indicating that it measures how much energy is used over a given period of time.

In the context of electricity, power can be calculated using the formula ( P = V \times I ), where ( P ) represents power in Watts, ( V ) represents voltage in Volts, and ( I ) represents current in Amperes. This relationship highlights the interconnection between these units while clearly defining Watts as the unit specifically designated for power.

Understanding this concept is crucial in fields related to electrical engineering and cathodic protection, where accurate power calculations are essential for system design and performance evaluation.