An electrical heater is used on a 220V supply and takes a current of 5A then what is its power and what is the cost of using the heater for 50 hours if 1KWh costs Rs.1.50?
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Using P=VI
P=220 x 5=1100 W
Total energy consumed in 50 hours ,
E=P x t
=(1100/1000) x 50=55 KWh
So cost will be=55 x1.50=Rs 82.50
P=220 x 5=1100 W
Total energy consumed in 50 hours ,
E=P x t
=(1100/1000) x 50=55 KWh
So cost will be=55 x1.50=Rs 82.50
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