What unit is used to measure electrical power?

The unit used to measure electrical power is the watt. Power, in electrical terms, is defined as the rate at which electrical energy is transferred or converted and is calculated as the product of voltage and current in an electrical circuit. This means that if you multiply the voltage (measured in volts) by the current (measured in amperes), the resulting value is expressed in watts, which quantifies the amount of energy consumed or produced in that circuit over time. Understanding this concept is essential because it helps in assessing energy usage and efficiency in electrical systems, critical components in both AC and refrigeration applications.

The other units, such as volts, amperes, and ohms, are important in their own right, serving to measure voltage, current, and resistance respectively, but they do not directly quantify electrical power itself.