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By using Lumen method prove that DF is the reciprocal of MF.
(b) Suppose: NWηUFDFMF= No. of lamps = Wattage of each lamp = Efficiency of each lamp (1 lm/ watt )= Utilization Factor
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(b) Suppose: NWηUFDFMF= No. of lamps = Wattage of each lamp = Efficiency of each lamp (1 lm/ watt )= Utilization Factor
(b) Suppose: NWηUFDFMF= No. of lamps = Wattage of each lamp = Efficiency of each lamp (1 lm/ watt )= Utilization Factor = Depreciation Factor = Maintenance Factor
By using Lumen method prove that DF is the reciprocal of MF.
By using Lumen method prove that DF is the reciprocal of MF.
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