The tungsten filament of a certain 100 w light bulb, Physics

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The tungsten filament of a certain 100 w light bulb

The tungsten filament of a certain 100 W light bulb radiates 2.50 W of light. (The other 97.5 W is carried away by convection and conduction.) The filament has surface area of 0.270 mm2 and an emissivity of 0.950. Find the filament's temperature. (The melting point of tungsten is 3683 K.)
K

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