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

EXPLANATION

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

EXPLANATION

18. A Nixie cold cathode glow discharge tube has :

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

ANSWER

EXPLANATION

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

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

ANSWER

EXPLANATION

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

EXPLANATION

1 2 3 4 5 6 7 8 9 10

Be a Part of The New & Next

MCQs fb  MCQs G+

Share the Knowledge

Leave a Reply

Your email address will not be published. Required fields are marked *

Shares
Copy Protected by Chetan's WP-Copyprotect.