Advanced Qualification · A-001 Advanced theory · A-001-005-006
Quel est le facteur de qualité (Q) d'un circuit RLC parallèle quand la résonance = 7,125 MHz, L = 10,1 microhenrys et R = 100 ohms?
- A4,52
- B0,221
- C22,1
- D0,00452
Correct answer: B — 0,221. Question tirée de la banque officielle d'ISDE.
Why
The value 0.221 is correct because the quality factor, or Q, of a parallel circuit measures how sharply it resonates by comparing the resistance to the reactance. The full explanation — and one for every question — is in Pro.
Practise this section
Advanced theory is section A-001 of the Advanced exam: Advanced theory: time constants, reactance, impedance, resonance, Q, and the mathematics behind tuned circuits.
Drill A-001 — free, no account