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Physics 14 Online
OpenStudy (anonymous):

Calculate the electric power which must be supplied to the filament of of a light bulb operating at 3000K. The total surface area of the filament is 8 x 10^ -6 m2 and its emissivity is 0.92.

OpenStudy (anonymous):

its 33.8

OpenStudy (anonymous):

Thanks so much, it really helped.

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