The resistance of the filament of the bulb measured with a


A GE softwhite longlife lightbulb is rated as follows: Pr=rated power= 60 W Por= rated optical power = 820 lumens (lm) (average) 1 lumen = 1/680 W operating life = 1500 h (average) Vr = rated operating voltage= 115 V The resistance of the filament of the bulb, measured with a standard multimeter, is 16.7 ohms. When the bulb is connected into the circuit and is operating at the rated values given above determine a) the resistance of the filament b) the efficiency of the bulb

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Electrical Engineering: The resistance of the filament of the bulb measured with a
Reference No:- TGS0564166

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