Which is the unit of measure for AC power?

The unit of measure for AC power is the Watt. Power in an electrical context is defined as the rate at which energy is consumed or converted, and in AC circuits, it quantifies the amount of electrical energy used over time. One Watt is equivalent to one Volt multiplied by one Ampere, which highlights the interplay between voltage and current in determining power.

This reflects the fundamental principles of electricity where power is calculated as the product of voltage (the electrical potential) and current (the flow of electric charge). In AC systems, this includes considerations of factors such as phase angle and power factor, but the basic unit remains the Watt.

Understanding that Watts provide a measure of how much electrical energy is being used or produced in a circuit is essential for analyzing and designing electrical systems, as it directly correlates to efficiency, consumption, and generation of electrical energy.