What unit is used to measure electric power in a circuit?

The unit used to measure electric power in a circuit is the watt. Power in an electrical context is calculated as the product of voltage (measured in volts) and current (measured in amperes). Therefore, when discussing electric power, the watt becomes a crucial measurement as it quantifies how much energy is being consumed or converted per unit time in a given circuit. This makes it an essential unit in assessing the efficiency and capacity of electrical devices and systems.

On the other hand, volt is the unit of measurement for electric potential, ampere measures electrical current, and ohm is the unit of resistance in an electrical circuit. While all are fundamental concepts in electrical engineering, they serve different roles and applications in understanding electrical systems.