PSI Barbering Practice Exam

Which term refers to the quantity of electric charge flowing through a circuit per unit time?

1. Voltage

2. Current

3. Resistance

4. Power

The correct answer is: Current

The term that refers to the quantity of electric charge flowing through a circuit per unit time is current. This concept is fundamental in electrical circuits and is measured in amperes (A). Current represents the flow of electrons and indicates how much charge passes through a point in the circuit in a given period. This is essential for understanding the behavior of electrical devices and circuits, as the amount of current determines how much power is delivered and how devices function. In contrast, voltage refers to the potential difference that drives the flow of current, resistance measures how much a material opposes the flow of current, and power is the rate at which electrical energy is transferred or converted. Each of these terms has its own specific definition and impact on electrical circuits, but when it comes to the direct flow of electric charge, current is the accurate term.