Home / Atoms and Electrons – 1 – 4

Atoms and Electrons – 1 – 4

16. Which type of the following structures contains two atoms per cell ?

(a) Body centered cubic
(b) Face centered cubic
(c) Single cubic cell
(d) None of the above

Answer
Answer : (a)

Explanation
No answer description available for this question. Let us discuss.

17. In silicon material, the mobility of free electron is :

(a) 2.5 m^2/Vs
(b) 2.7 m^2/Vs
(c) 1.66 m^2/Vs
(d) 2.33 m^2/Vs

Answer
Answer : (a)

Explanation
No answer description available for this question. Let us discuss.

18. A Nixie cold cathode glow discharge tube has :

(a) 20 cathodes
(b) 15 cathodes
(c) 14 cathodes
(d) 10 cathodes

Answer
Answer : (d)

Explanation
No answer description available for this question. Let us discuss.

19. The minority holes are about ………. that of electron.

(a) Half
(b) Same
(c) Twice
(d) Thrice

Answer
Answer : (a)

Explanation
No answer description available for this question. Let us discuss.

20. The volume charge density of mobile carriers is expressed in :

(a) Coulombs / cubic meters
(b) Coulombs / meters
(c) Coulombs / seconds
(d) Coulombs / volts

Answer
Answer : (c)

Explanation
No answer description available for this question. Let us discuss.

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