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Electromagnetics
Waveguides
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Antennas
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Miscellaneous
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Transmission Lines
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Maxwell Equations
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Uniform Plane Waves
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1
GATE ECE 2001
MCQ (Single Correct Answer)
+1
-0.3
The phase velocity of waves propagating in a hollow metal waveguide is
A
greater than the velocity of light in free space
B
less than the velocity of light in free space
C
equal to the velocity of light in free space
D
equal to the group velocity
2
GATE ECE 2001
MCQ (Single Correct Answer)
+1
-0.3
The dominant mode in a rectangular waveguide is $$T{E_{10}}$$, because this mode has
A
no attenuation
B
no cut-off
C
no magnetic field component
D
the highest cut-off wavelength
3
GATE ECE 1999
MCQ (Single Correct Answer)
+1
-0.3
Indicate which one of the following modes do NOT exist in a rectangular resonant cavity.
A
$$T{E_{110}}$$
B
$$T{E_{011}}$$
C
$$T{M_{110}}$$
D
$$T{M_{111}}$$
4
GATE ECE 1997
MCQ (Single Correct Answer)
+1
-0.3
A rectangular air-filled waveguide has a cross section of $$4\,cm\,\, \times \,\,10cm$$. The minimum frequency which can propagate in the waveguide is
A
1.5 GHz
B
2.0 GHz
C
2.5 GHz
D
3.0 GHz
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Questions Asked from Marks 1
GATE ECE 2014 Set 3 (1) GATE ECE 2011 (1) GATE ECE 2009 (1) GATE ECE 2004 (1) GATE ECE 2002 (1) GATE ECE 2001 (2) GATE ECE 1999 (1) GATE ECE 1997 (1) GATE ECE 1994 (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