Basic Qualification · B-004 Circuit components · B-004-002-007
In a semiconductor diode, electrons flow from:
- Aanode to cathode
- Bsource to drain
- Cbase to collector
- Dcathode to anode
Correct answer: D — cathode to anode. From the official ISED question bank, verified word for word.
Why
In a semiconductor diode, the actual flow of electrons moves from the cathode to the anode, which is the opposite direction of the conventional current symbol often drawn on circuit diagrams. The full explanation — and one for every question — is in Pro.
Practise this section
Circuit components is section B-004 of the Basic exam: The parts inside the box: resistors, capacitors, inductors, diodes, transistors, tubes and what each does in a circuit.
Drill B-004 — free, no account