an electric heater is used on a 220V supply and take a current of 5A. find power, energy consumed in 10 mins and cost of using the heater for 5 hours at the rate of rs. 5 per unit
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Potential difference = 220 V
Current = 5 A
Power = 220*5 = 1100 W
1W = 1/1000= 0.001 KW
1100 W = 1.1 kW
Energy consumed in 10 minutes
= power *time
= 1100*10 = 11000 J
Cost = 1.1*5*5 = Rs 27.5
Current = 5 A
Power = 220*5 = 1100 W
1W = 1/1000= 0.001 KW
1100 W = 1.1 kW
Energy consumed in 10 minutes
= power *time
= 1100*10 = 11000 J
Cost = 1.1*5*5 = Rs 27.5
tarunsingh1:
You've multiplied 10 min. With power without converting units.how we will show it in alternative units.
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