## Marks 1

A linear 2-port network is shown in Fig. (a). An ideal DC voltage source of 10 V is connected across Port 1. A variable resistance R is connected acro...

The ABCD matrix for a two-port network is defined by :
$$\left[ {\matrix{
{{V_1}} \cr
{{I_1}} \cr
} } \right] = \left[ {\matrix{
A &...

The z-parameter matrix for the two-port network shown is $$$\left[ {\matrix{
{2\,j\,\omega } & {j\,\omega } \cr
{j\,\omega } & {3\, + ...

Consider a two-port network with the transmission matrix: T = $$\begin{bmatrix}A&B\\C&D\end{bmatrix}$$. If the network is
reciprocal, then

The 2-port admittance matrix of the circuit shown is given by
...

For the two-port network shown below, the short-circuit admittance parameter
matrix is
...

If the transfer function of the following network is $$\,{{{V_0}(s)} \over {{V_i}(s)}} = {1 \over {2\, + \,sCR}}$$
The value of the load resistance ...

The ABCD parameters of an ideal n:1 transformer shown in Fig. are $$\left[ {\matrix{
n & 0 \cr
0 & X \cr
} } \right]$$. The value ...

The admittance parameter Y12 in the 2-port network in Figure is
...

If each branch of a Delta circuit has impedance $$\sqrt 3 \,Z$$, then each branch of the equivalent Wye circuit has impedance

A 2-port network is shown in figure. The parameter $${h_{21}}$$ for this network can be given by
...

The short-circuit admittance matrix of a two-port network is $$$\begin{bmatrix}0&-\frac12\\\frac12&0\end{bmatrix}$$$
The two port network is

The condition, that a 2-port network is reciprocal, can be expressed in terms of its ABCD parameters as ...............

## Marks 2

The z-parameter matrix $$\begin{bmatrix}z_{11}&z_{12}\\z_{21}&z_{22}\end{bmatrix}$$ for the two-port network shown is
...

The ABCD parameters of the following 2-port network are
...

For the two-port network shown in the figure, the impedance (Z) matrix (in Ω) is
...

The equivalent resistance in the infinite ladder network shown in the figure, is$${R_e}$$
The value of $${R_e}/R$$ is _______________...

In the h-parameter model of the 2-port network given in the figure shown, the value of h22 (in
S) is _____ .
...

In the circuit shown below, the network N is described by the following Y matrix:
$$$Y\;=\;\begin{bmatrix}0.1S&-0.01S\\0.01S&0.1S\end{bmatrix}...

A two-port network shown below is excited by external dc sources. The voltages and the currents are measured with voltmeters $${V_1}$$, $${V_2}$$ and ...

A two-port network shown below is excited by external dc sources. The voltages and the currents are measured with voltmeters $${V_1}$$, $${V_2}$$ and ...

The driving point impedance of the following network is given by $$Z(s) = {{0.2\,s} \over {{s^2}\, + \,0.1\,s\, + \,2}}$$. The component values are
...

In the two port network shown in the figure below, z12 and z21 are, respectively
...

A two-port network is represented by ABCD parameters given by
$$\left[ {\matrix{
{{V_1}} \cr
{{I_1}} \cr
} } \right] = \,\left[ {\matrix{...

If R1 = R2 = R4 = R and R3 = 1.1R in the bridge circuit shown in figure, then the reading in the ideal voltmeter connected between a
and b is
...

The h parameters of the circuit shown in Fig. are
...

For the lattice circuit shown in Fig., $${Z_a} = j\,2\,\Omega \,\,and\,\,{Z_b} = \,\,2\Omega $$. The values of the open circuit impedance parameters
...

For the circuit shown in Figure, the initial conditions are zeros. Its transfer function
$$H(s) = {{{V_c}\,(s)} \over {{V_i}\,(s)}}$$ is
...

The impedance parameters Z11 and Z12 of the two-port network in figure are
...

The driving-point impedance Z(s) of a network has the pole-zero locations as shown in figure. If Z(0) = 3, then Z(s) is
...

The Z parameters $${Z_{11}}$$ and $${Z_{21}}$$ for the 2-port network in Fig. are
...

A Delta-connected network with its Wye-equivalent is shown in Fig.P2.4. The
resistance R1, R2 and R3 (in ohms) are respectively
...

In the circuil of Fig. the equivalent impedance seen across terminals A. B is
...

For the 2-port network shown in Fig. determine the h-parameters. Using these parameters, calculate the output (port '2' ) $${v_2}$$, when the output p...

For a 2-port network to be reciprocal

Two two-port networks are connected in cascade. The combination is to be
represented as a single two-port network. The parameters of the network are
o...

The condition AD - BC = 1 for a two-port network implies that the network is a

The condition AD - BC = 1 for a two-port network implies that the network is a

For the transfer function of a physical two-port network

Two two-port networks are connected in parallel. The combination is to be represented as a single two-port network. The parameters of this network are...

## Marks 5

Find the Y-parameters (short ciruit admittance parameters) for the network shown in figure.
...

Consider the network in Fig.
(a) Find its short-circuit admittance parameters.
(b) Find the open-ciruit impedance $${Z_{22}}$$.
...

The admittance parameters of a 2-port network shown in Fig. are given by $${Y_{11}} = \,2\,\,mho$$, $${Y_{12}}$$ = - 0.5 mho, $${Y_{21}}$$ = 4.8 mho, ...

Find the input resistance $${R_{in}}$$ of the infinite section resistive network shown in Fig.
...

The open circuit impedance matrix $${Z_{OC}}$$ of a three-terminal two-port network with A as the input terminal, B as the output terminal, and C as t...

Find the current-transfer-ratio, $${{I_2}}$$/$${{I_1}}$$, for the network shown below (Fig). Also, mark all branch currents.
...

Show that the system shown in Fig. is a double integator. In other words, prove that the transfer gain is given by
$${{{V_0}\,(s)} \over {{V_s}\,(s)}...

Assuming that the amplifier shown in the Fig., below, is a voltage-controlled voltage source, show that the voltage transfer function of the network i...

## Marks 8

The two-port Darlington impedance booster of figure uses identical transistors $$({h_{ie}} = 1\,k,\,\,{h_{fe}} = \,100,\,\,{h_{re}} = \,\,{h_{oe}} = \...