If a device operates at 120 volts and draws 4 amperes, its power consumption is?

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Study for the NOCTI Heating, Ventilation, and Air Conditioning (HVAC) Test. Practice with flashcards and multiple choice questions, each question offers hints and explanations. Get ready for your exam!

Multiple Choice

If a device operates at 120 volts and draws 4 amperes, its power consumption is?

Explanation:
Power equals voltage times current, so with 120 volts and 4 amperes the consumption is 120 × 4 = 480 watts. The other numbers would require different current at the same voltage (for example, 120 watts would need 1 A, 60 watts would need 0.5 A, and 960 watts would need 8 A).

Power equals voltage times current, so with 120 volts and 4 amperes the consumption is 120 × 4 = 480 watts. The other numbers would require different current at the same voltage (for example, 120 watts would need 1 A, 60 watts would need 0.5 A, and 960 watts would need 8 A).

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