Advanced Qualification · A-001 Advanced theory · A-001-005-008
Quel est le facteur de qualité (Q) d'un circuit RLC parallèle quand la résonance = 3,625 MHz, L = 3 microhenrys et R = 2,2 kilohms?
- A31,1
- B0,031
- C32,2
- D25,6
Correct answer: C — 32,2. Question tirée de la banque officielle d'ISDE.
Why
The value 32.2 is correct because the quality factor, or Q, for a parallel circuit measures how sharply it resonates by comparing the resistance to the reactance of the coil at that specific frequency. 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