GATE EE 2014 Set 3 — Question 24
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Question
In a long transmission line with and are the resistance, inductance, shunt conductance and capacitance per unit length, respectively, the condition for distortionless transmission is
Correct answer
(A) rc = lg
Solution
For a transmission line to be distortionless, the attenuation constant must be independent of frequency and the phase velocity must be constant. This condition is satisfied when the time constants of the series and shunt branches are equal:
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