Physics, asked by ravinbhardwaj5861, 1 day ago

What are difficulties in testing whether the filament of a lighted bulb obeys ohm's law?

Answers

Answered by gp9226941

Answer:

Just make sure the filament is at a constant temperature, which means a constant current. If you measure the resistance with an ohmmeter, the current is very small, so the filament will be cold.

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