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GATE EC 2020: Electromagnetic Theory Quiz 9
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Question 1
Many circles are drawn in a Smith chart used for transmission line calculations. The circles shown in figure represent
Question 2
The input impedance of lossless λ/8 transmission line with other end short circuited is given by ______. (Assume characteristic impedance Zo = 50Ω)
Question 3
Consider a lossless transmissions line which is connected as shown in the figure
The average power dissipated in 25 load is__________ Watts.
The average power dissipated in 25 load is__________ Watts.
Question 4
A 200 m long transmission line having parameters shown in the figure is terminated into a load RL. The line is connected to a 400 V source having source resistance RS 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 RL (in W) is____.
Question 5
A lossless transmission line with a characteristic impedance of 80 is terminated by a load of 125 .If length of line is Than the input impedance is: -
Question 6
A 40Ω, 4.2 meters long lossless line is operated at 75MHz. The phase velocity is 0.2c and the input impedance at the middle of the line is 60 - j50Ω. What is the input impedance at the generator?
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Oct 31ESE & GATE EC