Five electric fans of 100 watts each are used for 2 hours. Calculate the electrical energy consumed in kilowatt-hours. *
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1 W = 1/1000 kW
100 W = 100/1000 kW
= 0.1 W
this power has been consumed by 5 electric fans for 2 hours
= 0.1 x 5 x 2
= 1 kw/h
there fore the enery consumed is 1 kw/h
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