Question

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

• A. Electrons are majority carriers and trivalent atoms are dopants.
• B. Electron are minority carriers and pentavalent atoms are dopants.
• C. Holes are minority carriers and pentavalent atoms are dopants.
• D. Holes are majority carriers and trivalent atoms are dopants.

Answer 1

Answer: (C)

Holes are minority carriers and pentavalent atoms are dopants.
Option is correct.

In n-type conductor, pentavalent atoms are dopant. Electrons concentration in n-type conductor is higher so electrons are the majority charge carriers and holes are minority charge carriers.