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Electric Power

Five electric...

Question

Five electric fans of 120 watts each are used for 4 hours. Calculate the electrical energy consumed in kilowatt hours.

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Solution

Power of 5 electric fans, $P = 5 \times 120 = 600 W = 0.6 k W$
$t = 4 h r$
$E = p \times t = 2.4 k W h$

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