A 50W incandescent ligh bulb (spherical in shape) has a surface temperature of 140deg C when the room air temperature is at 22 deg C. The light bulb has 65mm in diameter and the emissivity is 0.78. What is the radiant heat transfer?

A 50W incandescent ligh bulb (spherical in shape) has a surface temperature of 140deg C when the room air temperature is at 22 deg C. The light bulb has 65mm in diameter and the emissivity is 0.78. What is the radiant heat transfer?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A 50W incandescent ligh bulb (spherical in shape) has a surface temperature of 140deg C when the room air temperature is at
22 deg C. The light bulb has 65mm in diameter and the emissivity is 0.78. What is the radiant heat transfer?
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