GATE EC 2016 Set 1 — Question 35
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Electromagnetics → Transmission Lines → Characteristic Impedance & Propagation
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Question
The propagation constant of a lossy transmission line is and its characteristic impedance is at . The values of the line constants are, respectively,
Correct answer
(B) L = 250 μ H/m, C = 0.1 μ F/m, R = 100 Ω/m, G = 0.04 S/m
Solution
The propagation constant and characteristic impedance are given by:
Multiplying the two:
Equating real and imaginary parts:
Dividing the two:
Equating real and imaginary parts:
Thus, , which corresponds to option (B).
Multiplying the two:
Equating real and imaginary parts:
Dividing the two:
Equating real and imaginary parts:
Thus, , which corresponds to option (B).
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