Electronics and Communication Engineering - Electromagnetic Field Theory - Discussion


The input impedance of short-circuited line of length l where l < λ/4

[A]. inductive
[B]. capacitive
[C]. resistive
[D]. none of the above

Answer: Option A


l < λ/4, ZL = 0

, if Zd comes +j kZC then inductive,

If Zd comes -j kZC then capacitive.

For 0 ≤ l ≤ 1/4, λ ≤ l ≤ 3λ/4 will be inductive.

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