Which term describes the flow or movement of electrons through a conductor?

• A. Amperes
• B. Current
• C. Ohms
• D. Volts

Answer: (B)

Current is the flow of electric charges through a conductor. It tells you how much charge passes a point per second, which, in a metal, corresponds to the movement of electrons. The standard unit is the ampere, defined as one coulomb per second. While electrons actually move from negative to positive potential, the current concept is defined as the flow of positive charge, a convenient convention for describing circuits. Ampere is the unit of this flow, while ohms describe resistance (opposition to flow) and volts describe the driving force (voltage difference) that pushes charges through the conductor.