Advanced Qualification · A-002 Advanced components and circuits · A-002-010-011
In a multivibrator circuit, when one transistor conducts, the other is:
- A saturated
- B reverse-biased
- C forward-biased
- D cut off
Correct answer: D — cut off. From the official ISED question bank, verified word for word.
Why
In a multivibrator circuit designed to switch states, the two transistors work in opposite phases: when one turns fully on to conduct current, the other must turn completely off to stop conducting. The full explanation — and one for every question — is in Pro.
Practise this section
Advanced components and circuits: semiconductors, amplifier classes, oscillators, mixers, filters and digital logic.