Five electric fans of 120 watts each are used for 4 hours. Calculate the electrical energy consumed in kilowatt hours?
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120*5= 600
600 watts are used by 5 fans in 1 hour....
600*4 = 2400
2400 watts are used by 5 fans in 4 hours ..
as we know.
1 kilowatt = 1000 watts
electricity consumed by fans = 2.4 kilowatt / hours
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