Basic Qualification · B-003 Station assembly, practice and safety · B-003-016-006
La tension aux bornes d'une batterie chute lorsqu'elle fournit du courant. Quelle est la cause de cette chute?
- ASa capacité en tension
- BSa résistance interne
- CL'assèchement de son électrolyte
- DSa capacité en courant
Correct answer: B — Sa résistance interne. Question tirée de la banque officielle d'ISDE.
Why
Every battery has a tiny amount of resistance built inside it, called internal resistance. The full explanation — and one for every question — is in Pro.
Practise this section
Station assembly, practice and safety is section B-003 of the Basic exam: Building a station safely: power supplies, grounding, RF exposure, lightning, feedline routing, and what a transmitter, receiver and transceiver actually do.
Drill B-003 — free, no account