how much resistance a light bulb filament requires to glow please give me a genuine answer it is very important Question for me
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Temperature coefficient of resistance for tungsten
The typical cold resistance of a 100 W incandescent lamp is about 9.5 ohms. If that resistance stayed the same with 120 V applied, Ohm's Law tells us that the bulb would draw about 12.5 amps and dissipate about 1,500 watts.
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