Basic Qualification · B-005 Basic electronics and theory · B-005-003-004
Vous construisez un circuit composé d'une batterie et d'une résistance de charge. Quelle défaillance du circuit empêcherait tout courant de circuler?
- AUn circuit inductif
- BUn circuit fermé
- CUn circuit ouvert
- DUn court-circuit
Correct answer: C — Un circuit ouvert. Question tirée de la banque officielle d'ISDE.
Why
An open circuit means the path for electricity is broken, like a switch left off or a wire snapped, so electrons cannot flow from the battery to the load resistor. The full explanation — and one for every question — is in Pro.
Practise this section
Basic electronics and theory is section B-005 of the Basic exam: The theory: Ohm's law, power, series and parallel circuits, AC and DC, frequency and wavelength, decibels, and the metric prefixes the exam leans on.
Drill B-005 — free, no account