calculate the cost of operating a heater of 500 W for 20 hours at the rate of Rs3 90 per - Science - Electricity

Question

calculate the cost of operating a heater of 500 W for 20 hours at
the rate of Rs3 90 per unit

Dr. Utkarsh Jindal · Accepted Answer

As we know
Energy = Power x Time
E = 500 X 20
E = 10,000 WH
Convert E in kWH
= 10000 / 1000
= 10 kWH
Amount = 10 X Rs 0 35
Total amount = Rs 35

calculate the cost of operating a heater of 500 W for 20 hours at the rate of Rs3.90 per unit