What unit measures the rate of flow of electrical current?

The unit that measures the rate of flow of electrical current is the ampere. This unit quantifies how much electric charge is passing a point in a circuit over a period of time. One ampere represents one coulomb of charge moving past a given point in one second.

Understanding this concept is fundamental in electrical studies, as the flow of current is crucial for the functioning of electrical devices and systems. The voltage (volt) is related to the potential difference that drives the current, while resistance (ohm) quantifies how much a material opposes the flow of current. The watt measures power, which is the product of voltage and current, but does not directly measure the current itself. Therefore, the correct unit for measuring the flow of electrical current is indeed the ampere.