Semiconductor Materials » Exercise – 1
4. Recombination of electrons and holes takes place when :
(a) an electron falls into a hole
(b) a positive ion and a negative ion bond together
(c) avalanche electron becomes a conduction electron
(d) an atom is formedSubject 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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