The watt is the unit of electrical power.

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Multiple Choice

The watt is the unit of electrical power.

Power is the rate at which electrical energy is used or produced. The watt is the unit for that rate. In an electric circuit the power can be found by multiplying the voltage by the current: P = V × I. This means when you have 1 volt pushing 1 ampere, you’re using 1 watt of power (1 V × 1 A = 1 W). Voltage is measured in volts, current in amperes, and resistance in ohms, while the watt is a derived unit (joules per second) that specifically measures electrical power. In automotive contexts you’ll see devices rated in watts or kilowatts, and you can estimate power drawn from a 12-volt system by multiplying the voltage by the current draw.

Power is the rate at which electrical energy is used or produced. The watt is the unit for that rate. In an electric circuit the power can be found by multiplying the voltage by the current: P = V × I. This means when you have 1 volt pushing 1 ampere, you’re using 1 watt of power (1 V × 1 A = 1 W). Voltage is measured in volts, current in amperes, and resistance in ohms, while the watt is a derived unit (joules per second) that specifically measures electrical power. In automotive contexts you’ll see devices rated in watts or kilowatts, and you can estimate power drawn from a 12-volt system by multiplying the voltage by the current draw.

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