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PHY 102 Test Compilation PHY 102 12 Objective Question
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Question

Which of the following is not true about doping of semiconductor?
Options
A doping with group III element leads to p-type semiconductor.
B doping with group V element leads to n-type semiconductor.
C doping with group III elements leads to excess holes in valency band.
D doping with group V elements leads to excess holes in the conduction band.
Correct Answer
Correct Answer

Option D is the correct answer.

Detailed Explanation

Doping with Group V elements (pentavalent impurities) provides excess electrons, not holes. These excess electrons are loosely bound and easily move into the conduction band, making them majority carriers in an n-type semiconductor. Excess holes are characteristic of p-type semiconductors, which are doped with Group III elements.

Hint

Recall the type of charge carriers (electrons or holes) introduced by Group III (trivalent) and Group V (pentavalent) impurities in semiconductors.

Question Info

Course: PHY 102
Topic: Test Compilation PHY 102 12
Type: Objective
Difficulty: Not specified
Question 970 of 1819
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