24. Two elements that are frequently used for making transistors are :
(a) Iridium and Tungsten
(b) Lead and Tin
(c) Iron and Carbon
(d) Silicon and GermaniumSubject 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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