What is the standard unit of power?

The standard unit of power is the Watt. Power, in the context of electrical systems, represents the rate at which energy is transferred or converted. Specifically, one Watt is defined as one joule of energy transferred or converted per second. This unit is widely used in understanding electrical devices and their energy consumption.

Other units listed have their specific functions. Volts measure electric potential or voltage, which is not a direct measure of power. Decibels are used to express the intensity of sound or the power level of signals in a logarithmic scale, while Hertz refers to the frequency of a periodic event, indicating cycles per second. Therefore, among these options, the Watt is the only unit that directly measures power.