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0.3 0.1 3. 7.

0.3 0.1 3. 7.

Elements Of Electromagnetics
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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The spectral emissivity function of an opaque surface at 800 K is approximated as: Determine the average emissivity of the surface and its emissive power.
The spectral emissivity function of an opaque surface at 800 K is approximated as: 1.0 0.8 0.3 0.1 7. A. um Determine the average emissivity of the surface and its emissive power. Select one: a. ɛ = 0.621, E = 12 100 W/m2 %3D b. ɛ = 0.721, E = 12 100 W/m2 %3D C. E = 0.521, E = 12 100 W/m2 d. ɛ = 0.521, E = 15 100 W/m2 %3D
Transcribed Image Text:The spectral emissivity function of an opaque surface at 800 K is approximated as: 1.0 0.8 0.3 0.1 7. A. um Determine the average emissivity of the surface and its emissive power. Select one: a. ɛ = 0.621, E = 12 100 W/m2 %3D b. ɛ = 0.721, E = 12 100 W/m2 %3D C. E = 0.521, E = 12 100 W/m2 d. ɛ = 0.521, E = 15 100 W/m2 %3D
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