Advanced Qualification · A-002 Advanced components and circuits · A-002-006-001
Dans quelle partie du cycle d'un signal, un amplificateur de classe A est-il au travail?
- AMoins que 180 degrés
- BLe cycle complet
- CExactement 180 degrés
- DPlus que 180 degrés, mais moins que 360 degrés
Correct answer: B — Le cycle complet. Question tirée de la banque officielle d'ISDE.
Why
A Class A amplifier keeps its output transistor turned on for the entire cycle of the input signal, meaning it amplifies the full wave without ever cutting off. 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