Semiconductor Materials » Exercise – 4
159. The addition of pentavalent impurity to a semiconductor creates more :
(a) Free electrons
(b) Holes
(c) Positrons
(d) Free electrons and holesSubject 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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