Advanced Qualification · A-002 Advanced components and circuits · A-002-001-004
What type of semiconductor material contains more free electrons than pure germanium or silicon crystals?
- AN-type
- BP-type
- CBipolar
- DSuperconductor
Correct answer: A — N-type. From the official ISED question bank, verified word for word.
Why
N-type material is created by adding impurities that donate extra free electrons, making them the majority carriers in the crystal. The full explanation — and one for every question — is in Pro.
Practise this section
Advanced components and circuits is section A-002 of the Advanced exam: Advanced components and circuits: semiconductors, amplifier classes, oscillators, mixers, filters and digital logic.
Drill A-002 — free, no account