What is the unit used to measure electric current?

What is the unit used to measure electric current?

• A. Amperes (Amps, A)
• B. Volts (V)
• C. Ohms (Ω)
• D. Watts (W)

Answer: (A)

Current is the rate at which electric charge flows through a conductor, and the unit used to measure that flow is the ampere (A). One ampere means one coulomb of charge passes a point each second. This makes amperes the standard measure of how much current is moving in a circuit. Volts measure electrical potential difference or pressure that pushes charge through the circuit. Ohms measure resistance, which is how much a component resists the flow of current. Watts measure electrical power, the rate at which energy is used or transferred. A device called an ammeter, which is marked in amperes, is used to measure this current and is typically connected in series with the circuit.

Current is the rate at which electric charge flows through a conductor, and the unit used to measure that flow is the ampere (A). One ampere means one coulomb of charge passes a point each second. This makes amperes the standard measure of how much current is moving in a circuit.

Volts measure electrical potential difference or pressure that pushes charge through the circuit. Ohms measure resistance, which is how much a component resists the flow of current. Watts measure electrical power, the rate at which energy is used or transferred. A device called an ammeter, which is marked in amperes, is used to measure this current and is typically connected in series with the circuit.