What unit is electrical power measured in?

Electrical power is measured in watts. This unit quantifies the rate at which electrical energy is converted into another form of energy, such as heat or light. One watt is defined as one joule per second. This measurement is fundamental in understanding and calculating how much energy an electrical device consumes or generates over time.

In practical terms, when you look at electrical appliances, the wattage rating indicates their power consumption. For example, a light bulb rated at 60 watts uses that amount of power when operational. Recognizing this unit is crucial for evaluating electrical systems, determining energy efficiency, and ensuring safe electrical use in various applications.