Which unit measures the amount of current flowing into a circuit?

The unit that measures the amount of current flowing into a circuit is the ampere, commonly referred to as "amp." This unit quantifies the amount of electric charge passing a point in a circuit per unit time. When discussing electrical circuits, current is a fundamental concept, as it indicates how many electrons are flowing through the circuit.

In electrical terminology, volts measure the potential difference or electrical pressure that drives the current. Watts represent the power in the circuit, calculated as the product of volts and amps. Ohms measure the resistance in the circuit, indicating how much a substance opposes the flow of electric current. Therefore, for measuring current specifically, the amp is the correct unit, as it directly corresponds to the flow of electric charge.