What is the unit of electrical power?

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Prepare for the Sewer Collection Systems Operator Test. Study with multiple choice questions, each with hints and explanations. Ensure success on your exam!

Multiple Choice

What is the unit of electrical power?

Explanation:
Power is the rate at which electrical energy is used or produced. The unit that measures this rate is the watt, defined as one joule per second, and in electrical terms it equals voltage times current (P = V × I). So for a device operating at 12 volts drawing 2 amperes, the power is 24 watts. The other units—ampere (current), ohm (resistance), and volt (potential difference)—describe different aspects of an electrical circuit, not the rate of energy use.

Power is the rate at which electrical energy is used or produced. The unit that measures this rate is the watt, defined as one joule per second, and in electrical terms it equals voltage times current (P = V × I). So for a device operating at 12 volts drawing 2 amperes, the power is 24 watts. The other units—ampere (current), ohm (resistance), and volt (potential difference)—describe different aspects of an electrical circuit, not the rate of energy use.

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