Basic Qualification · B-004 Circuit components · B-004-003-006
Un composant à semi-conducteur est décrit comme un "composant NPN polyvalent pour fréquences audio". Qu'est-ce que c'est?
- AUn thyristor
- BUn transistor bipolaire
- CUn transistor à effet de champ
- DUn triac
Correct answer: B — Un transistor bipolaire. Question tirée de la banque officielle d'ISDE.
Why
An NPN label describes a specific way of stacking materials inside a bipolar transistor, which is the standard component used to amplify audio signals. 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