Consider a small surface of area A = 0.8 × 104m?, which emits diffusely with a total, hemispherical emissive power of Ej = 5x 104 W/m². n2 02 = 30° r2 = 0.5 m 0, = 60° A1 (a) At what rate is this emission intercepted by a small surface of area A2 = 5x 104m?, which is oriented as shown, in W? 91-2 = i 0014 (b) What is the irradiation G2 on A2, in W/m?? G2 i W/m? 2.76

Consider a small surface of area A = 0.8 × 104m?, which emits diffusely with a total, hemispherical emissive power of Ej = 5x 104 W/m². n2 02 = 30° r2 = 0.5 m 0, = 60° A1 (a) At what rate is this emission intercepted by a small surface of area A2 = 5x 104m?, which is oriented as shown, in W? 91-2 = i 0014 (b) What is the irradiation G2 on A2, in W/m?? G2 i W/m? 2.76

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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Concept explainers

Radiation

Radiation can be described as the energy in the form of a particular matter or electromagnetic waves traveling in the air and can be in the form of light, sound, and heat. Radiation can be detected through special instruments like X-rays. The radiation from a cooler object is less intense as compared to the radiation from hot objects.

Question

Consider a small surface of area A
0.8 × 104m?, which emits diffusely with a total, hemispherical emissive power of
Ej = 5x 104 W/m².
n2
02 = 30°
%3D
A2
r2 = 0.5 m
0 = 60°
A1
(a) At what rate is this emission intercepted by a small surface of area A2 = 5x104 m², which is oriented as shown, in
W?
%3D
91-2
i .0014
W
(b) What is the irradiation G2 on A2, in W/m2?
G2 = i 2.76
W/m?
Physical Properties Mathematical Functions

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