1
GATE ECE 2012
MCQ (Single Correct Answer)
+1
-0.3
A coaxial cable with an inner diameter of 1 mm and outer diameter of 2.4 mm is filled with a dielectric of relative permittivity 10.89. Given $${\mu _0} = \,4\,\pi \, \times \,{10^{ - 7}}$$
$$H/m,\,\,{\varepsilon _0} = {{{{10}^{ - 9}}\,} \over {36\,\pi }}\,F/m,$$ the characteristic impedance of the cable is
$$H/m,\,\,{\varepsilon _0} = {{{{10}^{ - 9}}\,} \over {36\,\pi }}\,F/m,$$ the characteristic impedance of the cable is
2
GATE ECE 2011
MCQ (Single Correct Answer)
+1
-0.3
A transmission line of characteristic impedance 50 $$\Omega $$ is terminated by a 50 $$\Omega $$ load. When excited by a sinusoidal voltage source at 10 GHz, the phase difference between two points spaced 2 mm apart on the line is found to be $$\pi /4$$ radians. The phase velocity of the wave along the line is
3
GATE ECE 2010
MCQ (Single Correct Answer)
+1
-0.3
If the scattering matrix [S] of a two port network is $$$\left[ S \right] = \left[ {\matrix{
{0.2\,\angle \,\,{0^ \circ }} & {0.9\,\,\angle \,\,{{90}^ \circ }} \cr
{0.9\,\angle \,\,{{90}^ \circ }} & {0.1\,\angle \,{{90}^ \circ }} \cr
} } \right]$$$
then the network is
4
GATE ECE 2010
MCQ (Single Correct Answer)
+1
-0.3
A transmission line has a characteristic impedance of 50 $$\Omega $$ and a resistance of 0.1 $$\Omega $$/m. If the line is distortionless, the attenuation constant (in Np/m) is
Questions Asked from Transmission Lines (Marks 1)
Number in Brackets after Paper Indicates No. of Questions
GATE ECE 2024 (1)
GATE ECE 2017 Set 1 (1)
GATE ECE 2017 Set 2 (1)
GATE ECE 2016 Set 1 (1)
GATE ECE 2015 Set 3 (1)
GATE ECE 2014 Set 3 (1)
GATE ECE 2014 Set 2 (1)
GATE ECE 2013 (1)
GATE ECE 2012 (1)
GATE ECE 2011 (1)
GATE ECE 2010 (2)
GATE ECE 2005 (1)
GATE ECE 2002 (2)
GATE ECE 2001 (1)
GATE ECE 2000 (1)
GATE ECE 1999 (1)
GATE ECE 1998 (1)
GATE ECE 1997 (1)
GATE ECE 1996 (2)
GATE ECE 1994 (1)
GATE ECE Subjects
Network Theory
Control Systems
Electronic Devices and VLSI
Analog Circuits
Digital Circuits
Microprocessors
Signals and Systems
Representation of Continuous Time Signal Fourier Series Discrete Time Signal Fourier Series Fourier Transform Discrete Time Signal Z Transform Continuous Time Linear Invariant System Transmission of Signal Through Continuous Time LTI Systems Discrete Time Linear Time Invariant Systems Sampling Continuous Time Signal Laplace Transform Discrete Fourier Transform and Fast Fourier Transform Transmission of Signal Through Discrete Time Lti Systems Miscellaneous Fourier Transform
Communications
Electromagnetics
General Aptitude