Advanced Qualification · A-002 Advanced components and circuits · A-002-002-007
Quel est l'usage habituel des diodes à point de contact?
- ADétecteur de RF
- BSource de courant constant
- CSource de tension constante
- DRedresseur à haute tension
Correct answer: A — Détecteur de RF. Question tirée de la banque officielle d'ISDE.
Why
Point contact diodes have a tiny metal wire touching a semiconductor crystal, creating a very small junction that reacts instantly to fast-changing signals. 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