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Physics
The donor impurity to be added for doping germanium crystal will be of valency:
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Q. The donor impurity to be added for doping germanium crystal will be of valency:
EAMCET
EAMCET 1999
A
2
B
3
C
4
D
5
Solution:
A pentavalent impurity like (phosphorous antimony, arsenic) is doped in pure, germanium crystal, its valency is 5.