A certain lightbulb has a tungsten filament with a


A certain lightbulb has a tungsten filament with a resistance of 19.5 ? when at 20.0°C and 142 ? when hot. Assume the resistivity of tungsten varies linearly with temperature even over the large temperature range involved here. Find the temperature of the hot filament. 

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Physics: A certain lightbulb has a tungsten filament with a
Reference No:- TGS0811146

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