Advanced Qualification · A-002 Advanced components and circuits · A-002-001-001
Quels sont les deux éléments largement utilisés dans les semi-conducteurs qui possèdent à la fois des caractéristiques métalliques et des caractéristiques non métalliques?
- ALe silicium et le germanium
- BLa galène et le germanium
- CLa galène et le bismuth
- DLe silicium et l'or
Correct answer: A — Le silicium et le germanium. Question tirée de la banque officielle d'ISDE.
Why
Silicon and germanium are the two elements that act as semiconductors, meaning they conduct electricity better than insulators but not as freely as metals, giving them a mix of metallic and non-metallic traits. 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