What is a watt a measurement of?

A watt is a measurement of electrical power, which quantifies the rate at which electrical energy is transferred or converted. Specifically, one watt is defined as one joule per second and describes how much work is done or energy consumed in a given time frame.

In the context of electrical systems, the power can be calculated using the formula P = VI, where P represents power in watts, V is the voltage in volts, and I is the current in amperes. Understanding this measurement is essential for evaluating how efficiently electrical systems operate and for determining the power requirements for various electrical devices and applications.

The other options pertain to different electrical concepts: electrical resistance is measured in ohms, electric potential is measured in volts, and current flow is measured in amperes. Each of these plays a crucial role in electrical engineering, but they do not represent the same concept as power measured in watts.