An electric heater draws a current of 10A from a 220V supply what is the cost of using the heater 5 hours per day for 30 days if the cost of 1 unit is 5 rupees
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I = 10 A
p.d = 220 v
power = V x I
= 220 x 10
= 2200 watt
The total energy consumed by the electric heater in 30 days would be
2200 W x 5 hour/day x 30 days = 330000 watt hour
= 330 kwh
Thus the cost of energy to operate the electric heater for 30 days is
330 kWh x Rs. 5 per unit = Rs 1650.
p.d = 220 v
power = V x I
= 220 x 10
= 2200 watt
The total energy consumed by the electric heater in 30 days would be
2200 W x 5 hour/day x 30 days = 330000 watt hour
= 330 kwh
Thus the cost of energy to operate the electric heater for 30 days is
330 kWh x Rs. 5 per unit = Rs 1650.
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