Advanced Qualification · A-002 Advanced components and circuits · A-002-001-004
Quel type de matériau semi-conducteur contient plus d'électrons libres que les cristaux purs de germanium ou de silicium?
- ALe type supraconducteur
- BLe type N
- CLe type P
- DLe type bipolaire
Correct answer: B — Le type N. Question tirée de la banque officielle d'ISDE.
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