Semiconductor Materials – 2 – 1

51. The drift velocity of an electron depends on :

(a) Electron and holes mobility
(b) Electron mobility
(c) Electron mobility and applied electric field
(d) Applied electric field

ANSWER
Answer : (c)

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

52. To find whether the semiconductor is N-type or P-type, one of the following effects can be used :

(a) Seebeck effect
(b) Peltier effect
(c) Hall effect
(d) Avalanche effect

ANSWER
Answer : (c)

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

53. Practically the hole mobility is …………… to the electron mobility in intrinsic semiconductor.

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

ANSWER
Answer : (b)

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

54. In an N-type material, the free electrons concentration is approximately equal to :

(a) The density of acceptor atoms
(b) The density of the donor atoms
(c) Sum of the density of acceptor and donor atoms
(d) None of these

ANSWER
Answer : (b)

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

55. A semiconductor is those material which has :

(a) Almost filled valence and conduction bands
(b) Almost empty valence and conduction bands
(c) Almost filled valence and almost empty conduction bands
(d) Almost empty valence and almost filled conduction bands

ANSWER
Answer : (c)

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

1 2 3 4 5 6 7 8 9 10

Be a Part of The New & Next

MCQs fb  MCQs G+

Share the Knowledge

GATE Total InfoGATE 2019 BooksFree Notes
IES Total InfoIES 2019 BooksFree Mock tests
JAM Total InfoJAM 2019 BooksEngg Diploma
PSUs Total InfoM Tech Total InfoUGC NET Total Info

General Knowledge Books

McqSeries.com is an online forum for multiple choice questions. This forum would be really-really helpful for those candidates who are preparing for examination conducted by Union Public Service Commission (like Civil Services Examination, Engineering Services Examination, Special Class Railway Apprentice, National Defence Academy, Combined Defence Services, etc.), Staff Selection Commission (like Combined Graduate Level, Junior Engineer, Food Corporation of India etc.), various public sector units (like DRDO, DMRC, BARC, BSNL, ONGC, etc.), Graduate Aptitude Test in Engineering, Indian Institute of Technology Entrance Examination etc. and many other national and state level examination.

Leave a Reply

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

Shares
GATE, IES & PSUs Total Information & GuidanceCheck Here!
Copy Protected by Chetan's WP-Copyprotect.