Q2/ Choose the Correct Answer: 1-The heat transfer is not constant when: (b) temperature decreases with time (d) any of these. (a) Temperature remains constant with time (c) Temperature increases with time 2-The quantity of heat radiation is not dependent on: (a) Area of the body only (b) shape of the body only (d) on all (a), (b) and (c). (c) Temperature of the body only 3-The radial heat transfer rate through hollow cylinder decreases as the ratio of outer radius to inner radius. (a) decreases (b) increases (c) constant (d) none of the above. 4-Heat transfer from higher temperature to low temperature takes place according to: (a) Fourier law (b) First law of thermodynamics (c) Second law of thermodynamics (d) Zeroth law of thermodynamics. 5-Stefan-Boltzmann law is expressed as: (a) Q = o ATª (b) Q = o A² T* (c) Q = AT* (d) Q = o AT²

Q2/ Choose the Correct Answer: 1-The heat transfer is not constant when: (b) temperature decreases with time (d) any of these. (a) Temperature remains constant with time (c) Temperature increases with time 2-The quantity of heat radiation is not dependent on: (a) Area of the body only (b) shape of the body only (d) on all (a), (b) and (c). (c) Temperature of the body only 3-The radial heat transfer rate through hollow cylinder decreases as the ratio of outer radius to inner radius. (a) decreases (b) increases (c) constant (d) none of the above. 4-Heat transfer from higher temperature to low temperature takes place according to: (a) Fourier law (b) First law of thermodynamics (c) Second law of thermodynamics (d) Zeroth law of thermodynamics. 5-Stefan-Boltzmann law is expressed as: (a) Q = o ATª (b) Q = o A² T* (c) Q = AT* (d) Q = o AT²

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

Q2/ Choose the Correct Answer:
1-The heat transfer is not constant when:
(a) Temperature remains constant with time
(b) temperature decreases with time
(c) Temperature increases with time
(d) any of these.
2-The quantity of heat radiation is not dependent on:
(a) Area of the body only
(c) Temperature of the body only
(b) shape of the body only
(d) on all (a), (b) and (c).
3-The radial heat transfer rate through hollow cylinder decreases as the ratio of outer radius
to inner radius.
(a) decreases
(b) increases
(c) constant
(d) none of the above.
4-Heat transfer from higher temperature to low temperature takes place according to:
(a) Fourier law
(b) First law of thermodynamics
(c) Second law of thermodynamics
(d) Zeroth law of thermodynamics.
5-Stefan-Boltzmann law is expressed as:
(a) Q = o ATª
(b) Q = 6 A² Tª
(c) Q = ATª
(d) Q = o AT²

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