Which unit represents electric power in a circuit?

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Multiple Choice

Which unit represents electric power in a circuit?

Electric power in a circuit is the rate at which electrical energy is transferred or used. Its unit is the watt. Power relates to voltage and current by P = V × I, so watts come from multiplying volts by amperes. For example, a 120 V circuit with 2 A of current uses 240 W. Power can also be expressed as P = I^2R or P = V^2/R, linking it to resistance. The volt is the unit of electrical potential difference and the ampere is the unit of current, while the ohm is the unit of resistance. These quantities combine to give power in watts, the correct unit for electric power.

Electric power in a circuit is the rate at which electrical energy is transferred or used. Its unit is the watt. Power relates to voltage and current by P = V × I, so watts come from multiplying volts by amperes. For example, a 120 V circuit with 2 A of current uses 240 W. Power can also be expressed as P = I^2R or P = V^2/R, linking it to resistance. The volt is the unit of electrical potential difference and the ampere is the unit of current, while the ohm is the unit of resistance. These quantities combine to give power in watts, the correct unit for electric power.

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