Basic Qualification · B-005 Basic electronics and theory · B-005-012-006
Dans un circuit résonant parallèle, le circuit présente, à la résonance:
- Aune impédance faible
- Bune inductance mutuelle faible
- Cune inductance mutuelle élevée
- Dune impédance élevée
Correct answer: D — une impédance élevée. Question tirée de la banque officielle d'ISDE.
Why
At resonance in a parallel circuit, the inductor and capacitor cancel each other out, causing the current drawn from the source to drop to a minimum. 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