The $Q$ factor of a series $LCR$ circuit with $L = 2 \ H$,$C = 32 \ \mu F$,and $R = 10 \ \Omega$ is:

$A$ parallel plate capacitor in series with a resistance of $100 \Omega$,an inductor of $20 \text{ mH}$,and an $AC$ voltage source of variable frequency shows resonance at a frequency of $\frac{1250}{\pi} \text{ Hz}$. If this capacitor is charged by a $DC$ voltage source to a voltage of $25 \text{ V}$,what amount of charge will be stored in each plate of the capacitor?

The resonance point in the $X_L - f$ and $X_C - f$ curves is

To increase the resonant frequency in a series $LCR$ circuit,

$A$ series $LCR$ circuit containing a resistance $R$ has angular frequency $\omega$. At resonance,the voltage across the resistance and the inductor are $V_R$ and $V_L$ respectively. Then,the value of inductance $L$ will be:

When you walk through a metal detector carrying a metal object in your pocket,it raises an alarm. This phenomenon works on