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Network Theory
Network Elements
Marks 1Marks 2Marks 5
Network Theorems
Marks 1Marks 2Marks 5
Transient Response
Marks 1Marks 2Marks 3Marks 5Marks 8Marks 10
Sinusoidal Steady State Response
Marks 1Marks 2Marks 5Marks 8
Two Port Networks
Marks 1Marks 2Marks 5Marks 8
Network Graphs
Marks 1Marks 2
State Equations For Networks
Marks 5
Miscellaneous
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1
GATE ECE 2025
MCQ (Single Correct Answer)
+2
-0.67

The $Z$-parameter matrix of a two port network relates the port voltages and port currents as follows:

$$ \left[\begin{array}{l} V_1 \\ V_2 \end{array}\right]=Z\left[\begin{array}{l} I_1 \\ I_2 \end{array}\right] $$

The Z-parameter matrix (with each entry in Ohms) of the network shown below is

___________.

GATE ECE 2025 Network Theory - Two Port Networks Question 1 English
A
$\left[\begin{array}{cc}\frac{10}{3} & \frac{2}{3} \\ \frac{2}{3} & \frac{10}{3}\end{array}\right]$
B
$\left[\begin{array}{cc}\frac{2}{3} & \frac{10}{3} \\ \frac{10}{3} & \frac{2}{3}\end{array}\right]$
C
$\left[\begin{array}{cc}10 & 2 \\ 2 & 10\end{array}\right]$
D
$\left[\begin{array}{cc}\frac{10}{3} & \frac{1}{3} \\ \frac{1}{3} & \frac{10}{3}\end{array}\right]$
2
GATE ECE 2024
Numerical
+2
-0

For the two port network shown below, the value of the $Y_{21}$ parameter (in Siemens) is ______.

GATE ECE 2024 Network Theory - Two Port Networks Question 2 English
Your input ____
3
GATE ECE 2023
MCQ (Single Correct Answer)
+2
-0.67

The h-parameters of a two port network are shown below. The condition for the maximum small signal voltage gain $${{{V_{out}}} \over {{V_s}}}$$ is

GATE ECE 2023 Network Theory - Two Port Networks Question 5 English

A
h$$_{11}=0$$, h$$_{12}=0$$, h$$_{21}=$$ very high and h$$_{22}=0$$
B
h$$_{11}=$$ very high, h$$_{12}=0$$, h$$_{21}=$$ very high and h$$_{22}=0$$
C
h$$_{11}=0$$, h$$_{12}=$$ very high, h$$_{21}=$$ very high and h$$_{22}=0$$
D
h$$_{11}=0$$, h$$_{12}=0$$, h$$_{21}=$$ very high and h$$_{22}=$$ very high
4
GATE ECE 2023
MCQ (Single Correct Answer)
+2
-0.67

The S-parameters of a two port network is given as

$$[S] = \left[ {\matrix{ {{S_{11}}} & {{S_{12}}} \cr {{S_{21}}} & {{S_{22}}} \cr } } \right]$$

with reference to $${Z_0}$$. Two lossless transmission line sections of electrical lengths $${\theta _1} = \beta {l_1}$$ and $${\theta _2} = \beta {l_2}$$ are added to the input and output ports for measurement purposes, respectively. The S-parameters $$[S']$$ of the resultant two port network is

GATE ECE 2023 Network Theory - Two Port Networks Question 4 English

A
$$\left[ {\matrix{ {{S_{11}}{e^{ - j2{\theta _1}}}} & {{S_{12}}{e^{ - j({\theta _1} + {\theta _2})}}} \cr {{S_{21}}{e^{ - j({\theta _1} + {\theta _2})}}} & {{S_{22}}{e^{ - j2{\theta _2}}}} \cr } } \right]$$
B
$$\left[ {\matrix{ {{S_{11}}{e^{j2{\theta _1}}}} & {{S_{12}}{e^{ - j({\theta _1} + {\theta _2})}}} \cr {{S_{21}}{e^{ - j({\theta _1} + {\theta _2})}}} & {{S_{22}}{e^{j2{\theta _2}}}} \cr } } \right]$$
C
$$\left[ {\matrix{ {{S_{11}}{e^{j2{\theta _1}}}} & {{S_{12}}{e^{j({\theta _1} + {\theta _2})}}} \cr {{S_{21}}{e^{j({\theta _1} + {\theta _2})}}} & {{S_{22}}{e^{j2{\theta _2}}}} \cr } } \right]$$
D
$$\left[ {\matrix{ {{S_{11}}{e^{ - j2{\theta _1}}}} & {{S_{12}}{e^{j({\theta _1} + {\theta _2})}}} \cr {{S_{21}}{e^{j({\theta _1} + {\theta _2})}}} & {{S_{22}}{e^{ - j2{\theta _2}}}} \cr } } \right]$$
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Questions Asked from Marks 2
GATE ECE 2025 (1) GATE ECE 2024 (1) GATE ECE 2023 (2) GATE ECE 2022 (1) GATE ECE 2016 Set 3 (1) GATE ECE 2015 Set 3 (1) GATE ECE 2014 Set 4 (2) GATE ECE 2014 Set 2 (1) GATE ECE 2011 (1) GATE ECE 2008 (3) GATE ECE 2006 (2) GATE ECE 2005 (2) GATE ECE 2004 (2) GATE ECE 2003 (2) GATE ECE 2001 (1) GATE ECE 1999 (1) GATE ECE 1997 (1) GATE ECE 1995 (1) GATE ECE 1992 (1) GATE ECE 1991 (1) GATE ECE 1989 (3) GATE ECE 1988 (1)
GATE ECE Subjects
Signals and Systems
Network Theory
Control Systems
Digital Circuits
General Aptitude
Electronic Devices and VLSI
Analog Circuits
Engineering Mathematics
Microprocessors
Communications
Electromagnetics