Recent questions in Circuit Analysis

$Z(s)=\frac{5}{s^{2}+4}$ represents the input impedance of a network.

An independent voltage source in series with an impedance $\mathbf{Z}_{\mathrm{s}}=R_{\mathrm{s}}+j X_{\mathrm{s}}$ delivers a maximum average power to a load impedance $...

Two series resonant filters are as shown in the figure. Let the $\text{3-dB}$ bandwidth of Filter $1$ be $B_{1}$ and that of Filter $2$ be $B_{2}$. The value of $\dfrac{B...

For the circuit shown in the figure, the Thevenin voltage and resistance looking into $\mathrm{X}-\mathrm{Y}$ are$4 / 3 \mathrm{~V}, 2 \; \Omega$$4 \mathrm{~V}, 2 / 3 \; ...

In the circuit shown, $V_{C}$ is $0$ volts at $t=0 \; \mathrm{sec}$. For $t>0$, the capacitor current $i_{c}(t)$, where $t$ is in seconds, is given by$0.50 \exp (-25 t) \...

In the $\text{AC}$ network shown in the figure, the phasor voltage $\text{V}_{\text{AB}}$ (in Volts) is$0$$5 \angle 30^{\circ}$$12.5 \angle 30^{\circ}$$17 \angle 30^{\cir...

In the following circuit, the switch $\mathrm{S}$ is closed at $t=0$. The rate of change of current $\dfrac{d i}{d t}(0+)$ is given by$0$$\frac{R_{S} I_{S}}{L}$$\frac{\le...

The Thevenin equivalent impedance $\text{Z}_{\text {th }}$ between the nodes $\text{P}$ and $\text{Q}$ in the following circuit is$1$$1+s+\frac{1}{s}$$2+s+\frac{1}{s}$$\f...

The driving point impedance of the following networkis given by $Z(s)=\frac{0.2 s}{s^{2}+0.1 s+2}$. The component values are$\begin{array}{lll} \mathrm{L}=5 \mathrm{~H}, ...

The circuit shown in the figure is used to charge the capacitor $\mathrm{C}$ alternately from two current sources as indicated. The switches $\text{S1}$ and $\text{S2}$ a...

The following series $\text{RLC}$ circuit with zero initial conditions is excited by a unit impulse function $\delta(t)$.For $t>0$, the output voltage $V_{c}(t)$ is$\frac...

The following series $\text{RLC}$ circuit with zero initial conditions is excited by a unit impulse function $\delta(t)$. For $t>0$, the voltage across the resistor is$\f...

A $dc$ circuit shown in the figure is has a voltage source $\text{V}$, a current source $I$ and several resistors. A particular resistor $\mathrm{R}$ dissipates a power o...

In the series circuit shown in figure for series resonance, the value of the coupling coefficient $K$ will be$0.25$$0.5$$0.999$$1.0$

If the secondary winding of the ideal transformer shown in the circuit of Fig. $4.3.$ has $40$ turns, the number of turns in the primary winding for maximum power transfe...

In the figure, is in ideal moving iron voltmeter $M$ will read$7.07 \mathrm{~V}$$12.24 \mathrm{~V}$$14.14 \mathrm{~V}$$20.0 \mathrm{~V}$

In the figure is $\mathrm{A}^{1} \mathrm{~A}^{2}$ and $\mathrm{A}^{3}$ are ideal ammeters. If $\mathrm{A}^{1}$ reads $5 \mathrm{A}, \mathrm{~A}^{2}$ reads $12 \mathrm{A}$...

A fully charged mobile phone with a $12 \mathrm{~V}$ battery is good for a $10$ minute talk-time. Assume that, during the talk-time, the battery delivers a constant curre...

In the interconnection of ideal sources shown in the figure, it is known that the $60 \mathrm{~V}$ source is absorbing power.Which of the following can be the value of th...

If the transfer function of the following network is $\dfrac{V_{o}(s)}{V_{i}(s)}=\dfrac{1}{2+s C R}.$the value of the load resistance $R_{L}$ is$R / 4$$R / 2$$R$$2 R$