If a piece of 120V equipment uses 400 watts on average during a 24-hour day, approximately how many amps does it draw in that day?

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Study for the Mechatronics End-of-Pathway (EOP) Test. Explore flashcards and multiple-choice questions, each with hints and explanations. Prepare confidently for your exam!

Multiple Choice

If a piece of 120V equipment uses 400 watts on average during a 24-hour day, approximately how many amps does it draw in that day?

Explanation:
The main relation here is power equals voltage times current (P = V × I). To find the current, rearrange it as I = P / V. With 400 watts drawn from a 120-volt supply, the current is 400 / 120 ≈ 3.333 amperes. So the device draws about 3.34 A on average. The 24-hour period describes total energy usage, not the current value, so the current stays around 3.34 A while it runs.

The main relation here is power equals voltage times current (P = V × I). To find the current, rearrange it as I = P / V. With 400 watts drawn from a 120-volt supply, the current is 400 / 120 ≈ 3.333 amperes. So the device draws about 3.34 A on average. The 24-hour period describes total energy usage, not the current value, so the current stays around 3.34 A while it runs.

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