Determine the thermal power from the filament

Reference no: EM13302143

A large incandescent light bulb used in a spotlight in the 1939 movie "The Wizard of Oz" had an operating temperature of 2500 degrees Kelvin. If the surface area of the filament was 1 x 10^-2 meters^2, and the material used had an emissivity of 0.7, What is the thermal power from the filament in Joules/second?

Reference no: EM13302143

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