Answered: B. k/p.Cp D. p.Cp/k he end insulated…

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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Transcribed Image Text:4. Which of the following expresses thermal diffusivity of a substance in terms of thermal conductivity(k), density (p) and spccific heat (Cp) A. p.k.Cp C. В. К/р.Ср D. p.Cp/k 5. The boundary condition of the end insulated fin are: 1/ p.k.Cp dT - KA()t = 0 and T-To at x-0 de A. B. dT -kA dx m D. None of them 0 and T-Too at x-L C. T-0 at x-0 and q-0 at x3L The equation for the temperature profile inside a solid cylinder with heat source is: A. В. T-T T = T, + 2k T,-T С. D. None of them T-T, = q" (R-r) 2k For surface of very large area, A. radiosity (J)=0 C. Eb-J 7. B. The emissive power of a blackbody Eb-1 D. Eb-0 6.

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