Recent questions tagged circuit-analysis

In the figure, the output of the oscillator, $\mathrm{V}_{1}$ has $10 \mathrm{~V}$ peak amplitude with zero DC value. The transfer characteristic of the Schmitt inverter ...

The parallel RLC circuit shown in the figure is in resonance. In this circuit$\left|\mathrm{I}_{\mathrm{R}}\right|<1 \mathrm{~mA}$$\left|\mathrm{I}_{\mathrm{R}}+\mathrm{I...

The dependent current source shown in given figure.delivers $80 \mathrm{~W}$absorbs $80 \mathrm{~W}$delivers $40 \mathrm{~W}$absorbs $40 \mathrm{~W}$

In given figure $1.2,$ the switch was closed for a long time before opening at $t=0$. The voltage $V x$ at $t=0^{+}$ is$25 \mathrm{~V}$$50 \mathrm{~V}$$-50 \mathrm{~V}$$0...

Three identical $\text{RC}$-coupled transistor amplifiers are cascaded. If each of the amplifiers has a frequency response as shown in the figure is the overall frequency...

If the transistor in the figure is in saturation, then$\mathrm{I}_{\mathrm{C}}$ is always equal to $\beta_{\text{dc}} \text{I}_{\text{B}}$$\mathrm{I}_{\mathrm{C}}$ is alw...

In an impedance Smith chart, a clockwise movement along a constant resistance circle gives rise toa decrease in the value of reactancean increase in the value of reactanc...

In the network of the figure is the maximum power is delivered to $R_{\mathrm{L}}$ if its value is$16 \; \Omega$$\frac{40}{3} \; \Omega$$60 \; \Omega$$20 \; \Omega$

If the $3$-phase balanced source in the figure is delivers $1500 \mathrm{~W}$ at a leading power factor of $0.844$, then the value of $Z_{L}$ (in ohm) is approximately$90...

A zener diode regulator in the figure is to be designed to meet the specifications: $I_{L}=10 \mathrm{~mA}$, $\mathrm{V}_{0}=10 \mathrm{~V}$ and $\mathrm{V}_{m}$ varies f...

The voltage gain $\mathrm{A}_{u}=\frac{\mathrm{V}_{0}}{\mathrm{~V}_{i}}$ of the JFET amplifier shown in the figure is$+18$$-18$$+6$$-6$

Consider the following statements in connection with the CMOS inverter in the figure is where both the MOSFETs are of enhancement type and both have a thresh old voltage ...

The system shown in the figure is remains stable when$k<-1$$-1 < k < 1$$1 < k < 3$$k>3$

SECTION - B (75 Marks)This section consists of TWENTY questions $\text{(EC3 - EC22)}$ of FIVE marks each. Attempt ANY FIFTEEN questions. Answers must be given in the answ...

For the network shown in the figure is, $R=1 \mathrm{~K} \Omega$, $L_{1}=2 \; \mathrm{H}, \mathrm{L}_{2}=5 \; \mathrm{H}, \mathrm{L}_{3}=1 \; \mathrm{H}, \mathrm{L}_{4}=4...

Consider the network in the figure is. Find its short-circuit admittance parameters.Find the open-circuit impedance $Z_{22}$.

A triangular voltage waveform $V_{i}(t)$ first figure applied at the input to the circuit of second figure. Assume the diodes to be ideal. Determine the output $\mathrm{V...

The given figure shows $2$-stage amplifier. The transistors $\mathrm{Q}_{1}$ and $\mathrm{Q}_{2}$ are identical with current gain $\beta=100$; further $\beta_{\text {dc }...

The inputs to a digital circuit shown in the figure is are the external signals $A, B$ and $C$.$(\overline{\mathrm{A}}, \overline{\mathrm{B}}$ and $\overline{\mathrm{C}}$...

Each transistor in the figure is has dc current gain $\beta_{dc}=50$, cut-in voltage $V_{\gamma}=0.65 \mathrm{~V}$ and $\mathrm{V}_{\mathrm{BE’} \text { sat}}=0.75 \mathr...

An $8085$ microprocessor operating at $5 \; \mathrm{MHz}$ clock frequency executes the following routine.$\begin{array}{lll} {\text{START:}} & \text{MOVE} & \text{A,B} \\...

A unity feedback system has the plant transfer function $G_{p}(s)=\frac{1}{(s+1)(2 s+1)}$Determine the frequency at which the plant has a phase lag of $90^{\circ}$. An in...

The block diagram of a linear time invariant system is given in the figure isWrite down the state variable equations for the system in matrix form assuming the state vect...

Transmission line transformation of a load $Z_{L}$ to $Z$ is given by\[Z=Z_{0} \frac{Z_{1}+j Z_{0} \tan (\beta l)}{Z_{0}+j Z_{\mathrm{L}} \tan (\beta l)}\]Show that the a...

A network has $7$ nodes and $5$ independent loops. The number of branches in the network is$13$$12$$11$$10$

The nodal method of circuit analysis is based on$\text{KVL}$ and Ohm's law$\mathrm{KCL}$ and Ohm's law$\text{KCL}$ and $\text{KVL}$$\text{KCL, KVL}$ and Ohm's law

Superposition theorem is $\text{NOT}$ applicable to networks containingnonlinear elementsdependent voltage sourcesdependent current sourcestransformers

The short-circuit admittance matrix o a two-port network is$$ \left[\begin{array}{cc} 0 & -1 / 2 \\ 1 / 2 & 0 \end{array}\right] $$The two-port network isnon-reciprocal a...

The voltage across the terminals $a$ and $b$ in the figure is$0.5 \mathrm{~V}$$3.0 \mathrm{~V}$$3.5 \mathrm{~V}$$4.0 \mathrm{~V}$

In the $\text{MOSFET}$ amplifier of the figure is the signal outputs $V_{1}$ and $V_{2}$ obey the relationship$\mathrm{V}_{1}=\frac{\mathrm{V}_{2}}{2}$$\mathrm{V}_{1}=-\f...