An electric heater rated 1000w/220v operates 2 hours daily. calculate the cost of energy to operate for 30 days at 5 rupees per kilowatt hour.
Answers
Answered by
54
POWER = 1000 WATT
CHANGE IN KWH
1000/1000=1KWH
E=P*T
E=1*2
E=2KWH
FOR 30 DAYS IT will be
2*30=60kwh
the cost of energy is 5rupees per kwh
5*60
=rs 300
Thanks for asking
CHANGE IN KWH
1000/1000=1KWH
E=P*T
E=1*2
E=2KWH
FOR 30 DAYS IT will be
2*30=60kwh
the cost of energy is 5rupees per kwh
5*60
=rs 300
Thanks for asking
Answered by
5
Given :
Power (P) = 1000 W
Potential (V) = 220 V
Time of operation in a day = 2 hours
To Find :
Cost of operation of electric heater for 30 days
Solution :
We know, Energy = Power × Time
= 1000 × 2
= 2000 WH
= 2 KWH
Cost of operating electric heater for 30 days at Rs 5/KWH = 30×5×2
= Rs. 300
Therefore, the cost of operating electric heater for 30 days working 2 hours per day at Rs. 5 per KWH is found to be Rs. 300
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