1
GATE ECE 2015 Set 3
MCQ (Single Correct Answer)
+2
-0.6
Consider the 3 m long lossless air-filled transmission line shown in the figure. It has a characteristic impedance of $$120\pi \,\Omega $$, is terminated by a short circuit, and is excited with a frequency of 37.5 MHz. What is the nature of the input impedance $$({Z_{in}})$$? GATE ECE 2015 Set 3 Electromagnetics - Transmission Lines Question 10 English
A
Open
B
Short
C
Inductive
D
Capacitive
2
GATE ECE 2015 Set 3
Numerical
+2
-0
A 200 m long transmission line having parameters shown in the figure is terminated into a load ܴ$$R_L$$. The line is connected to a 400 V source having source resistance $$R_S$$ through a switch, which is closed at t = 0. The transient response of the circuit at the input of the line (z = 0) is also drawn in the figure. The value of ܴ$$R_L$$ (in $$\Omega $$ ) is ___________. GATE ECE 2015 Set 3 Electromagnetics - Transmission Lines Question 2 English
Your input ____
3
GATE ECE 2014 Set 2
Numerical
+2
-0
In the transmission line shown, the impedance $${Z_{in}}$$ (in ohms) between node A and the ground is GATE ECE 2014 Set 2 Electromagnetics - Transmission Lines Question 11 English
Your input ____
4
GATE ECE 2014 Set 1
MCQ (Single Correct Answer)
+2
-0.6
For a parallel plate transmission line, let v be the speed of propagation and Z be the characteristic impedance. Neglecting fringe effects, a redution of the spacing between the plates by a factor of two results in
A
halving of v and no change in Z
B
no changes in v and halving of Z
C
no change in both v and Z
D
halving of both v and Z
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