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The filament of the incandescent bulb (again, as I understand it) dep=The tungsten filament has a sublimation rate which depends on the
ends on its dimensions (length, cross-sectional area), type of materi=
al (tungsten?) and the temperature.
Since the filament gets significantly hotter as current flows through=
it, its resistance changes significantly and thus "I" will not vary =
directly with "V". =20
But does this make it "non-ohmic"?
If we could somehow couple the filament to a heat sink so that the te=
mperature of the filament does not change with the increasing voltage=
would "I" then vary directly with "V"? (...and would it then be "Oh=
mic"?)