Difficult
$L=2 \text{ H}, C=5 \text{ mF}$ and $R=12 \text{ } \Omega$ are connected in series to an a.c. generator of frequency $50 \text{ Hz}$. Then:
- Aat resonance,impedance of the circuit is zero.
- Bat resonance,impedance of the circuit is $12 \text{ } \Omega$.
- Cthe resonant frequency of the circuit is $1 / 2 \pi \text{ Hz}$.
- Dthe inductive reactance is less than the capacitive reactance.
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