Advanced Qualification · A-002 Advanced components and circuits · A-002-007-010

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

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

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

Why

A common drain FET amplifier takes its output from the source, which follows the input voltage closely, just as a common collector bipolar circuit takes its output from the emitter to follow the input. The full explanation — and one for every question — is in Pro.

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Advanced components and circuits: semiconductors, amplifier classes, oscillators, mixers, filters and digital logic.

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