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JamesJudasPries's avatar
JamesJudasPries
Explorer
Oct 19, 2016

Light bulb ohms. What the heck is going on here?

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...
Chuck_thehammer's avatar
Chuck_thehammer
Explorer
Oct 19, 2016
best way.. an amp meter with bulb powered ON...
why do you think is took years to develop the light bulb..

vacuum, material to withstand start up power and last from high heat.

so YES to light a bulb it does take 3-4 amps.. for 5 microseconds.
get a digital oscilloscope and you can see the ramp down of current at startup.


I Know, No help.

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