In a series $LCR$ circuit,if the current leads the source voltage,then

The impedance of the given circuit is......$\Omega $

The net impedance of the circuit (as shown in the figure) will be $...........\,\Omega$.

An $R-L-C$ circuit consists of a $150 \Omega$ resistor,$20 \mu F$ capacitor,and a $500 mH$ inductor connected in series with a $100 V$ $AC$ supply. The angular frequency of the supply voltage is $400 rad s^{-1}$. The phase angle between the current and the applied voltage is

$A$ resistor of resistance $30 \Omega$, an inductor of reactance $10 \Omega$, and a capacitor of reactance $10 \Omega$ are connected in series to an $AC$ voltage source $V = 300 \sqrt{2} \sin(\omega t)$. The current in the circuit is . . . . . . (in $\text{ A}$)

What will be the impedance of the circuit shown below in $\Omega$?