The glowing filament in a lamp is radiating energy at a rate of60 W. At the f,il ament's
Chapter 12, Problem 67(choose chapter or problem)
The glowing filament in a lamp is radiating energy at a rate of60 W. At the f,il ament's temperature of 1500C, the emissivityis 0.23. What is the surface area of the filament?
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