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21 August, 04:42

An electric iron operates on a 120-volt outlet and uses 2.30 amps of current. How much power does the iron use?

A. 0.019 watts

B. 276 watts

C. 52 watts

D. 630 watts

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Answers (1)
  1. 21 August, 05:22
    0
    There are a few different formulas for electrical power. They involve

    different combinations of voltage, current, and resistance.

    ==> Power = (current) ² x (resistance)

    ==> Power = (voltage) ² / (resistance)

    ==> Power = (voltage) x (current).

    In this case right now, we know the voltage and current, so maybe

    it's a good idea to use the formula that involves voltage and current.

    Power = (voltage) x (current)

    = (120 volts) x (2.3 Amperes)

    = 276 watts.
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