In a $n$-type semiconductor, which of the following statement is true?

In a $n$-type semiconductor, which of the following statement is true?
  1. Electrons are majority carriers and trivalent atoms are dopants
  2. Electrons are minority carriers and pentavalent atoms are dopants
  3. Holes are minority carriers and pentavalentf atoms are dopants
  4. Holes are majority carriers and trivalent atoms are dopants

Solution

The r-type sem-iconductor can be produced by doping an impurity atom of valence 5 i.e., pentavalent atoms. i.e., phosphorus.

Asked in: NEET 2013 (All India)

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