Advanced Qualification · A-002 Advanced components and circuits · A-002-007-011

The FET amplifier common gate circuit is similar to which of the following bipolar transistor amplifier circuits?

1. A Common emitter
2. B Common base
3. C Common mode
4. D Common collector

Correct answer: B — Common base. From the official ISED question bank, verified word for word.

Why

In a common gate FET amplifier, the input signal enters the source while the gate stays at a steady voltage, much like how a common base bipolar transistor takes its input at the emitter while the base remains fixed. 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.

Drill A-002 — free, no account · All A-002 questions