Question #41557
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
8×10−6m2 and its emissivity is 0.92.

20.3W
33.8W
46.4W
56.7W
1
Expert's answer
2014-04-23T13:37:57-0400
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