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A electric rerfrigerator rated 400 watt generator 8hour/day.what is th cost of energy to operate it for 30 days at rs.3.00 per kwh  
Asked by himanglodhi2 | 12 May, 2020, 09:52: AM
answered-by-expert Expert Answer
Power, P = 400 W = 400/1000 = 0.4 kW
Time for which refrigerator is operating, t = 30 × 8 = 240 h
 
Energy consumed = Pt = 0.4 × 240 = 96 kWh 
 
Cost of energy = Rs. 3 per kWh 
 
Thus, cost of energy which is utilized in operating refrigerator = 96 × 3 = Rs. 288 /-
Answered by Shiwani Sawant | 12 May, 2020, 11:40: AM

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A electric rerfrigerator rated 400 watt generator 8hour/day.what is th cost of energy to operate it for 30 days at rs.3.00 per kwh  
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