Advanced Qualification · A-002 Advanced components and circuits · A-002-002-002
Dans quel type de diode semi-conductrice la capacité interne varie-t-elle en même temps que la tension qui est appliquée à ses bornes?
- ALe redresseur commandé au silicium ("SCR")
- BLa diode Schottky ("hot carrier")
- CLe varactor
- DLa diode Zener
Correct answer: C — Le varactor. Question tirée de la banque officielle d'ISDE.
Why
A Varactor diode is designed specifically to change its internal capacitance when you adjust the voltage across it, acting like a voltage-controlled capacitor. 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