______ is measured in amperes.

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Multiple Choice

______ is measured in amperes.

Current is the flow of electric charge through a conductor, and its rate is measured in amperes. An ampere is defined as one coulomb of charge passing a point each second. That’s why an ammeter used to measure current has very low resistance and is placed in series with the circuit, so it doesn’t significantly affect the current you’re measuring. Ohm’s law ties these ideas together: current equals voltage divided by resistance, so increasing voltage or decreasing resistance increases current, while increasing resistance or decreasing voltage lowers it. Voltage is measured in volts, power in watts, and resistance in ohms, but amperes specifically quantify how much charge moves per second.

Current is the flow of electric charge through a conductor, and its rate is measured in amperes. An ampere is defined as one coulomb of charge passing a point each second. That’s why an ammeter used to measure current has very low resistance and is placed in series with the circuit, so it doesn’t significantly affect the current you’re measuring. Ohm’s law ties these ideas together: current equals voltage divided by resistance, so increasing voltage or decreasing resistance increases current, while increasing resistance or decreasing voltage lowers it. Voltage is measured in volts, power in watts, and resistance in ohms, but amperes specifically quantify how much charge moves per second.

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