Advanced Qualification · A-001 Advanced theory · A-001-004-008
Quelle est la fréquence de résonance d'un circuit RLC parallèle si R = 4,7 kilohms, L = 10 microhenrys et C = 50 picofarads?
- A7,12 kHz
- B3,18 MHz
- C3,18 kHz
- D7,12 MHz
Correct answer: D — 7,12 MHz. Question tirée de la banque officielle d'ISDE.
Why
The resonant frequency is 7.12 MHz because the calculation depends only on the inductor and capacitor values, while the resistor value does not change where resonance occurs. 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.
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