Advanced Qualification · A-001 Advanced theory · A-001-004-011
Quelle est la valeur de l'inductance (L) dans un circuit RLC parallèle, si la fréquence de résonance est 14,25 MHz et C = 44 picofarads?
- A253,8 millihenrys
- B3,9 millihenrys
- C0,353 microhenry
- D2,8 microhenrys
Correct answer: D — 2,8 microhenrys. Question tirée de la banque officielle d'ISDE.
Why
At 14.25 MHz with a 44 picofarad capacitor, the math for resonance shows the inductor must be about 2.8 microhenrys to balance the circuit. 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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