Semiconductor Materials » Exercise – 2
58. With respect to semiconductor, identify the valid statement.
I : Drift and diffusion occur simultaneously in a semiconductor device.
II : Mobility of free electrons is same as that of holes.
III : A crystal is not electrically neutral.
IV : Semiconductors exhibit negative temperature coefficient.
(a) I
(b) II
(c) III
(d) IVSubject Name : Electronics Engineering Exam Name : IIT GATE, UPSC ESE, RRB, SSC, DMRC, NMRC, BSNL, DRDO, ISRO, BARC, NIELIT Posts Name : Assistant Engineer, Management Trainee, Junior Engineer, Technical Assistant Electronics & Communication Engineering Books
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