Advanced Qualification · A-002 Advanced components and circuits · A-002-004-007
What are the two basic types of junction field-effect transistors (JFET)?
- ASilicon and germanium
- BN-channel and P-channel
- CHigh power and low power
- DMOSFET and GaAsFET
Correct answer: B — N-channel and P-channel. From the official ISED question bank, verified word for word.
Why
Junction field-effect transistors, or JFETs, are sorted by the type of material that carries the electric current through their centre channel. 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