Advanced Qualification · A-001 Advanced theory · A-001-004-002
Quelle est la fréquence de résonance d'un circuit RLC parallèle si R = 4,7 kilohms, L = 2 microhenrys et C = 15 picofarads?
- A5,31 kHz
- B29,1 MHz
- C29,1 kHz
- D5,31 MHz
Correct answer: B — 29,1 MHz. Question tirée de la banque officielle d'ISDE.
Why
The resonant frequency is 29.1 MHz because the resistance value does not change where the circuit naturally vibrates; only the inductor and capacitor matter. 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