What does an amp measure in electrical terms?

An ampere, often abbreviated as "amp," is the unit of measure used to quantify the electric current in a circuit. It specifically measures the flow of electric charge, reflecting the strength of the current. This means that when we refer to an amp, we are talking about how much electrical charge is flowing through a conductor per unit time.

The other terms represent distinct electrical concepts. Voltage measures the force that pushes electric charge through a circuit, while resistance indicates how much a material opposes the flow of electricity. Power, on the other hand, is the rate at which energy is transferred or converted and is typically calculated as a product of voltage and current. Understanding these distinctions helps reinforce why the strength of current is specifically measured in amps, setting it apart from the other options.