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1
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 $$\Omega $$
2
GATE ECE 1996
MCQ (Single Correct Answer)
+1
-0.3
A lossless transmission line having 50 $$\Omega $$ characteristic impedance and lenght $$\lambda /4$$ is short ciruited at one end and connected to an ideal voltage sourec of 1 V at the other end. The current drawn from the voltage source is
A
0
B
0.02 A
C
$$\infty $$
D
none of the above
3
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
$${C \over {{Z_0}}}$$
4
GATE ECE 1994
Fill in the Blanks
+1
-0
A load impedance (200 + j0) $$\Omega $$ is to be matched to a 50$$\Omega $$ lossless transmission line by using a quarter wave line transformer (QWT). The characteristic impedance of the QWT required is
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Fundamentals of Information Theory Noise In Digital Communication Analog Communication Systems Digital Communication Systems Random Signals and Noise
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