Hello This is really bugging me. I decided to measure a new incandescent light bulb I was installing at home with a multimeter, since it had no marking. I thought sure, I could figure out if thi...
As stated above tungsten has a positive temperature coefficient. It is 0.004403. If you are really interested, you can use the simple formula on this SITE to calculate the increase in resistance as the bulb filament heats up.
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