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

Power of each fan $=120\ Watt$

Number of fans $=5$

Therefore, power of total fans $=120\ W\times5=600\ W$

Time $t=4\ hours$

Total energy consumption by 5 fans $=Power\times time$

$=600\ W\times 4\ hour$

$=2400\ Watt-hour$

$=2.4\ kWh$

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Updated on: 10-Oct-2022

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