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Class 12 NEET Physics Semiconductor Electronics Part 1
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Question : 19
Total: 100
If a small amount of antimony is added to germanium crystal
(2011)
it becomes p-type semiconductor
the antimony becomes an acceptor atom
there will be more free electrons than holes in the semiconductor
its resistance is increased
Validate
Solution:
When a small amount of antimony (pentavalent) is added to germanium (tetravalent) crystal, then crystal becomes n-type semiconductor. In »-type semiconductor electrons are the majority charge carriers and the holes are the minority charge carriers.
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