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InterviewSolution
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In an n-type silicon, which of the following statement is true:(a) Electrons are majority carriers and trivalent atoms are the dopants.(b) Electrons are minority carriers and pentavalent atoms are the dopants.(c) Holes are minority carriers and pentavalent atoms are the dopants.(d) Holes are majority carriers and trivalent atoms are the dopants. |
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Answer» The answer is (C) Holes are minority carriers and pentavalent atoms are the dopants. An n-type semiconductor is obtained by doping a semiconductor with a pentavalent impurity. The impurity so added produces free electrons. Therefore, in an n-type semiconductor, the electrons are majority carriers and holes are minority carriers and pentavalent atoms are the dopants. |
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