Q10. A fan of 60 W &a tube 2 points light of 40 W is operated for mens 50 hours in a month. How much electricity is consumed te rod by it in a month?
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Power of fan = 60 Watts
Power of tube light = 40*2 = 80 Watts
Total Power = 60+80 = 140 W
Time the power used in 1 day = 5 hours
Energy used in 1 day = 5*140 = 700 Watts
Energy used in 30 days = 700*30 = 21000 Watts = 21kWh
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