Advanced Qualification · A-001 Advanced theory · A-001-003-007
Quelle est la fréquence de résonance d'un circuit RLC en série si R = 47 ohms, L = 8 microhenrys et C = 7 picofarads?
- A2,13 MHz
- B21,3 MHz
- C28,4 MHz
- D2,84 MHz
Correct answer: B — 21,3 MHz. Question tirée de la banque officielle d'ISDE.
Why
The correct value of 21.3 MHz comes from applying the standard formula for resonance, where the inductance and capacitance values determine the frequency at which the circuit naturally oscillates. 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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