A certain light bulb has a tungsten filament with a resistance of 13.0 Ω when cold ( 20.0°C ) and 180 Ω when hot. Find the temperature of the filament when it is hot. The resistivity of tungsten is 5.6*10-8 Ω·m , and the temperature coefficient of resistivity is 4.5*10-3 (°C)-1 .

A certain light bulb has a tungsten filament with a resistance of 13.0 Ω when cold ( 20.0°C ) and 180 Ω when hot. Find the temperature of the filament when it is hot. The resistivity of tungsten is 5.610-8 Ω·m , and the temperature coefficient of resistivity is 4.510-3 (°C)-1 .

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Question

A certain light bulb has a tungsten filament with a resistance of 13.0 Ω when cold ( 20.0°C ) and 180 Ω when hot. Find the temperature of the filament when it is hot. The resistivity of tungsten is 5.6*10^-8 Ω·m , and the temperature coefficient of resistivity is 4.5*10^-3 (°C)^-1 .

Expert Solution