An electric fan rated 50 watt operates 20hrs a day . What is the cost energy for 30 days at Rs 2 per Kwh?
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Answered by
15
Answer:
Power of electric heater = 50 watt
Energy consumed per day = (20×50)
= 1000 watt hour
Convert watt hour into kilowatt hour by dividing 1000 watt by 1000.
∴ 1000 watt = 1 kWh
Energy consumed by electric heater in 30 days = (1×30)
⇒ 30 kWh
cost of electricity = Rs 2 / kWh
Cost of electricity consumed by a electric heater in 30 days at the rate of 2 rupees per kWh.
= Rs ( 2×30 )
= Rs 60
Hence, the cost of electricity is Rs 60.
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Answered by
0
Answer:
50 w operates 20 hrs
the cost energy for 30 days is ₹60
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