Basic Qualification · B-005 Basic electronics and theory · B-005-012-002
À la résonance, quelle impédance présente un circuit accordé en parallèle?
- AHaute impédance
- BFaible impédance
- CImpédance égale à la réactance du circuit
- DImpédance égale à la résistance du circuit
Correct answer: A — Haute impédance. Question tirée de la banque officielle d'ISDE.
Why
At resonance, a parallel tuned circuit acts like a roadblock to the flow of alternating current, resulting in high impedance. 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