Advanced Qualification · A-001 Advanced theory · A-001-005-005
Quel est le facteur de qualité (Q) d'un circuit RLC parallèle quand la résonance = 7,125 MHz, L = 8,2 microhenrys et R = 1 kilohm?
- A2,73
- B36,8
- C0,368
- D0,273
Correct answer: A — 2,73. Question tirée de la banque officielle d'ISDE.
Why
The value 2.73 is correct because the quality factor, or Q, of a parallel circuit measures how sharply it resonates by comparing the resistance to the inductive reactance at the 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