Advanced Qualification · A-002 Advanced components and circuits · A-002-005-001
What are the three terminals of a silicon controlled rectifier (SCR)?
- A Base, collector and emitter
- B Gate, source and sink
- C Anode, cathode and gate
- D Gate, base 1 and base 2
Correct answer: C — Anode, cathode and gate. From the official ISED question bank, verified word for word.
Why
A silicon controlled rectifier, or SCR, acts like a one-way valve for electricity that you can turn on with a small signal. 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.