Advanced Qualification · A-002 Advanced components and circuits · A-002-001-006
What are the majority charge carriers in N-type semiconductor material?
- A Holes
- B Free protons
- C Free neutrons
- D Free electrons
Correct answer: D — Free electrons. From the official ISED question bank, verified word for word.
Why
In N-type semiconductor material, extra atoms are added to create many loose, free electrons that carry the electric current. The full explanation — and one for every question — is in Pro.
Practise this section
Advanced components and circuits: semiconductors, amplifier classes, oscillators, mixers, filters and digital logic.