Physics, 06.05.2020 00:38 shonnybenskin8
A certain lightbulb has a tungsten filament with a resistance of 26 Ω when cold and 170 Ω when hot. If the equation R = R0 [1 + α ∆T] can be used over the large temperature range involved here, find the temperature of the filament when it is hot. Assume that α , the temperature coefficient of resistivity of tungsten, is 0.0045 (◦C)−1 and that the temperature of the cold filament is 40◦C. Answer in units of ◦C
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A certain lightbulb has a tungsten filament with a resistance of 26 Ω when cold and 170 Ω when hot....
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