Maharashtra BoardEnglish MediumSTD 12 SciencePhysicsQuestion Bank [ 2022 ]1 Mark
Question
State any one characteristic of a parallel LC AC resonance circuit.
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Answer
i. Resonance occurs when $X_L=X_C$. ii. Resonant frequency $f_r=\frac{1}{2 \pi \sqrt{ LC }}$ iii. Impedance is maximum. iv. Current is minimum. v. When the alternating current of different frequencies is sent through the parallel resonant circuit, it offers a very high impedance to the current of the resonant frequency $\left(f_r\right)$ and rejects it. However, it allows the current of the other frequencies to pass through it, hence called a rejector circuit.
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