Q # 4. How much will it cost to operate a 1500-W quartz heater for 48 hours if the cost of
electricity is Rs 7/kWh?
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Answer : Rs. 504
Step-by-Step Explanation:
- Power of the quartz heater = 1500W = 1.5kW
- Time for which it is operated. = 48 hours
- Rate = Rs. 7 kW/h
- The total cost to operate it for 48 hours = ?
Total Power = Power x Time
=> 1.5 kW x 48 hours
Total Power => 72 kW
Rate of Kilo watt per hour => Rs. 7
Total Cost for 48 hours => Rs. 7 x 72 kW
=> Rs. 504
Hence, It will cost Rs. 504 to operate a 1500 W qaurtz heater for 48 hours at the rate of Rs. 7 kW/h.
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