Question

holes in an n - type semiconductor are
select one:
o a. minority carriers that are produced by doping
o b. majority carriers that are produced by doping
o c. minority carriers that are thermally produced
o d. majority carriers that are thermally produced

Explanation:

In an n - type semiconductor, doping with a pentavalent impurity (e.g., phosphorus) creates an excess of electrons (majority carriers). Holes are formed due to thermal excitation (breaking of covalent bonds), and their concentration is much lower than that of electrons. So, holes are minority carriers produced thermally.

Answer:

C. minority carriers that are thermally produced