______ is measured in watts.

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Multiple Choice

______ is measured in watts.

Power is the rate at which electrical energy is transferred or consumed. The watt is the unit for this rate, defined as one joule per second. So when a device is rated in watts, it indicates how quickly it uses energy each second. In circuits, power relates to voltage and current by P = V × I, showing how the electrical pressure (voltage) and the flow of charge (current) determine the rate of energy use. Other quantities are measured differently: voltage in volts, current in amperes, and resistance in ohms. For example, a 60-watt bulb uses energy at 60 joules per second, while a 100-watt bulb uses energy at 100 joules per second.

Power is the rate at which electrical energy is transferred or consumed. The watt is the unit for this rate, defined as one joule per second. So when a device is rated in watts, it indicates how quickly it uses energy each second. In circuits, power relates to voltage and current by P = V × I, showing how the electrical pressure (voltage) and the flow of charge (current) determine the rate of energy use. Other quantities are measured differently: voltage in volts, current in amperes, and resistance in ohms. For example, a 60-watt bulb uses energy at 60 joules per second, while a 100-watt bulb uses energy at 100 joules per second.

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