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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 1998
MCQ (Single Correct Answer)
+1
-0.3
The radiation resistance of a circular loop of one turn is 0.01 $$\Omega $$. The radiation resistance of five turns of such a loop will be
A
0.002 $$\Omega $$
B
0.01 $$\Omega $$
C
0.05 $$\Omega $$
D
0.25 $$\Omega $$
2
GATE ECE 1998
MCQ (Single Correct Answer)
+1
-0.3
The far field of an antenna varies with distance r as
A
1/r
B
1 / $${r^2}$$
C
1 / $${r^3}$$
D
$${1 \over {\sqrt r }}$$
3
GATE ECE 1998
MCQ (Single Correct Answer)
+1
-0.3
The vector $$\mathop H\limits^ \to $$ in the far field of an antenna satisfiels
A
$$\nabla .\,\mathop H\limits^ \to = 0\,\,and\,\,\nabla \times \,\mathop H\limits^ \to = 0\,$$
B
$$\nabla .\,\mathop H\limits^ \to \ne 0\,\,and\,\,\nabla \times \,\mathop H\limits^ \to \ne 0$$
C
$$\nabla .\,\mathop H\limits^ \to = 0\,\,and\,\,\nabla \times \,\mathop H\limits^ \to \ne 0\,\,$$
D
$$\nabla .\,\mathop H\limits^ \to \ne 0\,\,and\,\,\nabla \times \,\mathop H\limits^ \to = 0\,\,$$
4
GATE ECE 1995
MCQ (Single Correct Answer)
+1
-0.3
An antenna when radiating, has a highly directional radiation pattern. When the antenna is receiving its radiation pattern
A
is more directive
B
is less directive
C
is the same
D
exhibits no directivity at all
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Questions Asked from Marks 1
GATE ECE 2015 Set 3 (1) GATE ECE 2014 Set 4 (2) GATE ECE 2012 (1) GATE ECE 2008 (1) GATE ECE 2006 (1) GATE ECE 2005 (1) GATE ECE 2004 (1) GATE ECE 2002 (1) GATE ECE 2000 (1) GATE ECE 1998 (4) GATE ECE 1995 (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