Advanced Qualification · A-002 Advanced components and circuits · A-002-004-006

What are the three terminals of a junction field-effect transistor (JFET)?

1. A Emitter, base 1, base 2
2. B Emitter, base, collector
3. C Gate 1, gate 2, drain
4. D Gate, drain, source

Correct answer: D — Gate, drain, source. From the official ISED question bank, verified word for word.

Why

A junction field-effect transistor, or JFET, controls current flow using three specific parts: the gate, which acts like a valve to regulate the signal; the drain, where the current exits; and the source, where the current enters. 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