GATE EC 2024 Set 1 — Question 15
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Electromagnetics → Transmission Lines → Input Impedance & Reflection
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Question
Consider a lossless transmission line terminated with a short circuit as shown in the figure below. As one moves towards the generator from the load, the normalized impedances , , , and (indicated in the figure) are _______.
Correct answer
(A) z_(inA) = +1j Ω, z_(inB) = ∞, z_(inC) = -1j Ω, z_(inD) = 0
Solution
For a lossless transmission line terminated with a short circuit, the load impedance is . The normalized input impedance at a distance from the load is given by:From the figure, the distances of the points from the load (at ) are:
- Point A:
- Point B:
- Point C:
- Point D:
1.
2.
3.
4.
Thus, the correct sequence is , which corresponds to option (A).Continue learning with Success Tracker
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