Basic Qualification · B-004 Circuit components · B-004-003-003
What are the three electrodes of a bipolar transistor?
- A Collector, source and drain
- B Gate, source and drain
- C Collector, emitter and base
- D Drain, base and source
Correct answer: C — Collector, emitter and base. From the official ISED question bank, verified word for word.
Why
A bipolar transistor uses three specific parts to control current: the base acts as the gatekeeper, the emitter releases the flow, and the collector gathers it. 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.