Basic Qualification · B-004 Circuit components · B-004-004-004
In a field-effect transistor, from which electrode do charge carriers enter the channel?
- A Drain
- B Emitter
- C Source
- D Gate
Correct answer: C — Source. From the official ISED question bank, verified word for word.
Why
In a field-effect transistor, the Source is the electrode where charge carriers enter the channel to flow toward the other end. The full explanation — and one for every question — is in Pro.
Practise this section
The parts inside the box: resistors, capacitors, inductors, diodes, transistors, tubes and what each does in a circuit.