An electric heater takes 10A current at 220V. What is the power and energy consumed in one hour ?
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Answers
Answer:
First,
Calculate the power of the heater
GIVEN–
Potential Difference(V) = 220V
Current (I) = 10A
Now,
P = V × I
P = 220×10
P = 2200W.
=> 220/1000kW
=> 2.2kW
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Now,
We have
Power (P) =2.2kW
Time (T) = 5h
Electric energy consumed in one day
E = P × T
=> 2.2 × 5
=> 11 kWh
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Now,
Electric energy consumed in 30 days
=> 11 × 30
=> 330 kWh
____________________________
It is given that cost of 1 unit ( 1 k Wh) electricity is Rs. 5.20
So,
Cost of 330 units of electricity = Rs.5.20 × 330
=> Rs. 1716.
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see its given that current drawn=10ampere
voltage=220volts
power=VI(voltage×current) =220×10=2200watts
2200watts=(2200÷1000)kw=2.2kw
unit consumed by heater in 5hours=2.2×5=11kwh
unit consumed by it in a month=11×30=330kwh
total cost=330×5.20=1716rs
Explanation:
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