Advanced Qualification · A-002 Advanced components and circuits · A-002-006-005
For what portion of a signal cycle does a Class C amplifier operate?
- A180 degrees
- BLess than 180 degrees
- CMore than 180 degrees but less than degrees
- DThe entire cycle
Correct answer: B — Less than 180 degrees. From the official ISED question bank, verified word for word.
Why
A Class C amplifier conducts electricity for only a small slice of the signal wave, meaning it is active for less than half of the full 360-degree cycle. 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