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

Prepare for the NOCTI HVAC Test. Study with flashcards and multiple choice questions, complete with hints and explanations. Ace your exam with confidence!

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).

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy