Recreational Vehicle (RV) Technician Practice Test

The flow of electric charge in an electrical circuit is represented by current. Current is measured in amperes (A), which indicates the amount of electric charge that flows through a conductor over a specific period of time. It is a vital concept in understanding how electrical circuits operate. Voltage, on the other hand, represents the potential difference that drives the current through the circuit. While resistance refers to the opposition to the flow of current, power is a measure of how much energy is being used or generated per unit of time in the circuit. Each of these concepts plays an important role in the overall functionality of electrical circuits, but only current specifically describes the actual flow of electric charge.