The filament of a light bulb has a temperature of 320e3
The filament of a light bulb has a temperature of 3.20E+3 °C and radiates 40 watts of power. The emissivity of the filament is 0.360. Find the surface area of the filament.
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the filament of a light bulb has a temperature of 320e3 degc and radiates 40 watts of power the emissivity of the
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