What unit is typically used to express the flow of electrical current?

The flow of electrical current is measured in amperes, often abbreviated as amps. This unit quantifies the amount of electric charge passing a point in a circuit per unit time. One ampere is defined as one coulomb of charge moving through a point in a circuit per second. Understanding this unit is crucial for working with electrical systems, as it directly relates to how much electricity is available for devices and systems to function.

In contrast, ohms measure the resistance in a circuit, volts measure the electrical potential difference, and watts measure the power consumed or produced in a circuit. While all these units are interconnected through the relationships defined by Ohm's Law and the power equations, amperes specifically focus on current flow.