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1
GATE ECE 1999
MCQ (Single Correct Answer)
+1
-0.3
Assuming perfect conductors of a transmission line, pure TEM propagation is NOT possible in
A
coaxial cable
B
air-filled cylindrical waveguide
C
parallel twin-wire line in air
D
semi-infinite parallel plate waveguide
2
GATE ECE 1998
MCQ (Single Correct Answer)
+1
-0.3
All transmission line sections shown in Fig. have characteristic impedance $${R_0}\, + \,j0$$. The input impedance $${Z_{in}}$$ equals GATE ECE 1998 Electromagnetics - Transmission Lines Question 60 English
A
$${2 \over 3}\,{R_0}$$
B
$${R_0}$$
C
$${3 \over 2}\,{R_0}$$
D
$$2\,\,{R_0}$$
3
GATE ECE 1997
MCQ (Single Correct Answer)
+1
-0.3
A transmission line of 50$$\Omega $$ characteristic impedance is terminated with a 100 $$\Omega $$ resistance. The minimum impedance measured on the line is equal to
A
0 $$\Omega $$
B
25 $$\Omega $$
C
50 $$\Omega $$
D
100 $$\Omega $$
4
GATE ECE 1996
MCQ (Single Correct Answer)
+1
-0.3
The capacitance per unit length and the characteristic impedance of a lossless transmission line are C and $$Z_0$$ respectively. The velocity of a traveling wave on the transmission line is
A
$${Z_0}C$$
B
$${1 \over {{Z_0}C}}$$
C
$${{{Z_0}} \over C}$$
D
$${C \over {{Z_0}}}$$
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