Semiconductor Electronics Materials Devices and Simple Circuits - Result Question 46
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47. To obtain a $p$-type germanium semiconductor, it must be doped with
======= ####47. To obtain a $p$-type germanium semiconductor, it must be doped with
3e0f7ab6f6a50373c3f2dbda6ca2533482a77bed:content/english/neet-pyq-chapterwise/physics/semiconductor-electronics-materials-devices-and-simple-circuits/semiconductor-electronics-materials-devices-and-simple-circuits—result-question-46.md (a) arsenic
(b) antimony
(c) indium
(d) phosphorus
[1997]
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Answer:
Correct Answer: 47. (c)
Solution:
- (c) p-type germanium semiconductor is formed when it is doped with a trivalent impurity atom.
Doping is the process of addition of impurity. When pure or intrinsie semiconductor is mixed with small amounts of certain specific impurities with valency different from that of the parent material the number of mobile electrons/holes transtically changes.
