Estimate the temperature of the hot filament

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Reference no: EM13532748

A certain lightbulb has a tungsten filament with a resistance of 19.1 ? 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.

Reference no: EM13532748

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