The valence of the impurity atom that is to be added to germanium crys – McqOptions

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1.	The valence of the impurity atom that is to be added to germanium crystal so as to make it a N-type semiconductor, is [MNR 1993; MP PET 1994; CBSE PMT 1999; AIIMS 2000]
A.	6
B.	5
C.	4
D.	3
Answer» C. 4

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