Answer: Holes.
- A Electrons
- B Holes
- C Both equally
- D Protons
Correct answer: B. Holes
Explanation: N-type: majority carriers are electrons (from donor atoms). Minority carriers are holes.
Conductors have overlapping bands, semiconductors have a small energy gap that can be bridged by heat or doping, and insulators have a large gap that blocks conduction.
Concept context
Band theory, p-n junction, diodes, transistors, logic gates, and integrated circuits.