Questions & Answers of Linear 2-Port Network Parameters

Question No. 19

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

Question No. 119

The z-parameter matrix for the two-port network shown is

where the entries are in Ω. Suppose

Then the value of Rb (in Ω) equals ________

Question No. 244

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

Question No. 118

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

Question No. 241

The ABCD parameters of the following 2-port network are

Question No. 141

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

Question No. 343

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

Question No. 48

With 10 V dc connected at port A in the linear nonreciprocal two-port network shown below, the following were observed:

(i) 1Ω connected at port B draws a current of 3 A
(ii) 2.5Ω connected at port B draws a current of 2 A

With 10 V dc connected at port A, the current drawn by 7Ω connected at port B is

Question No. 49

With 10 V dc connected at port A in the linear nonreciprocal two-port network shown below, the following were observed:

(i) 1Ω connected at port B draws a current of 3 A
(ii) 2.5Ω connected at port B draws a current of 2 A

For the same network, with 6 V dc connected at port A, 1Ω connected at port B draws 7/3 A. If 8 V dc is connected to port A, the open circuit voltage at port B is

Question No. 33

In the circuit shown below, the network N is described by the following Y matrix:

$Y=\left[\begin{array}{cc}0.1\mathrm{S}& -0.01\mathrm{S}\\ 0.01\mathrm{S}& 0.1\mathrm{S}\end{array}\right]$. The voltage gain $\frac{{V}_{2}}{{V}_{1}}$ is

Question No. 4

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

Question No. 22

If the scattering matrix [S] of a two port network is

$\left[\mathrm{s}\right]=\left[\begin{array}{cc}0.2\angle {0}^{o}& 0.9\angle {90}^{o}\\ 0.9\angle {90}^{o}& 0.1\angle {90}^{o}\end{array}\right]$

then the network is

Question No. 76

A two-port network shown below is excited by external dc sources. The voltages and the currents are measured with voltmeters V1, V2 and ammeter A1, A2 (all assumed to be ideal), as indicated. Under following switch conditions, the readings obtained are:
i) S1 - Open, S2 - Closed A1 = 0A, V1 = 4.5V, V2 = 1.5V, A2 = 1A
ii) S1 - Closed, S2 - Open A1 = 4A, V1 = 6V, V2 = 6V, A2 = 0A

The z-parameter matrix for this network is