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I m stuck at this!!please solve!! |
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Answer» ONG>Answer: Given, Power = 23W Potential Difference = 220V Cost of 1kWh = RS. 0.8 Energy spent in a DAY by using the lamp for 6 hours = [Power*Time]/1000 = [23*6]/1000 kWh = 138/1000 kWh = 0.138 kWh Energy spent in 105 days = [0.138*105] kWh = 14.49 kWh Total Cost = Rs. [14.49*0.8] = Rs. 11.592 The Cost of Lamp after 105 days will be Rs. 11.592
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