A. Negligible flow of heat B. No difference of temperature between the bodies ©Heat flow independent of D. None of them time 5. The boundary conditions of the infinite length fin are: B.c Lay. A. - kA() =0 and T-To B. - kA()o = 0 and T-Too dT 2K %3D %3D dx at x=0 at x-L C. T=0 at x-0 and q=0 at x-DL 5. Two concentric cylinders are radiated heat to each other, the inner o cylinder (1) is (10cm) diameter, the outer cylinder (2) is (30cm) diameter, the shape factor F21 is equal to: D. None of them O O- A. 0.125 B.) 0.33 A.=A- С. 2 7. Plane wall with heat generation, at x-0 (T=T1), at x-L (T=T2) and (T1#T2), The temperature distribution inside the wall is: A. D. None of them Plane wall В. Plane wall D. Plane wall Plane wll 1 of 3 C.

A. Negligible flow of heat B. No difference of temperature between the bodies ©Heat flow independent of D. None of them time 5. The boundary conditions of the infinite length fin are: B.c Lay. A. - kA() =0 and T-To B. - kA()o = 0 and T-Too dT 2K %3D %3D dx at x=0 at x-L C. T=0 at x-0 and q=0 at x-DL 5. Two concentric cylinders are radiated heat to each other, the inner o cylinder (1) is (10cm) diameter, the outer cylinder (2) is (30cm) diameter, the shape factor F21 is equal to: D. None of them O O- A. 0.125 B.) 0.33 A.=A- С. 2 7. Plane wall with heat generation, at x-0 (T=T1), at x-L (T=T2) and (T1#T2), The temperature distribution inside the wall is: A. D. None of them Plane wall В. Plane wall D. Plane wall Plane wll 1 of 3 C.

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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Question

4. Unsteady state heat flow means,
A. Negligible flow of heat
B. No difference of temperature between
the bodies
(C Heat flow independent of
D. None of them
time
B.c Lagdin
5. The boundary conditions of the infinite length fin are:
dT
А.
- kA() =0 and T-To
dT
B.
- kA()-
= 0 and T=Too
-
-
%3D
at x-0
at x-L
& T=0 at x-0 and q=0 at x=L
D. None of them
O O- o
6. Two concentric cylinders are radiated heat to each other, the inner 00.03
cylinder (1) is (10cm) diameter, the outer cylinder (2) is (30cm)
diameter, the shape factor F21 is equal to:
A. 0.125
B.) 0.33
С. 2
7. Plane wall with heat generation, at x-0 (T=T1), at x-L (T=T2) and
(T1 T2), The temperature distribution inside the wall is:
А.
D. None of them
Plane
wall
В.
Plane
wall
C.
D.
Plane
wall
Plane
wll
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