Electronics and Communication Engineering - Microwave Communication - Discussion

Discussion Forum : Microwave Communication - Section 1 (Q.No. 43)
43.
A 10 km long line has a characteristic impedance of 400 ohms. If line length is 100 km, the characteristic impedance is
4000 Ω
400 Ω
40 Ω
4 Ω
Answer: Option
Explanation:

and is independent of line length.

Discussion:
5 comments Page 1 of 1.

Uma Rajpoot said:   2 years ago
400 ohm impedance is correct because characteristic impedance does not depend on the length of the transmission line.

Here Characteristics Impedance is equal to √ L (inductance) by C (capacitance of line).

Varni said:   8 years ago
The point is impedance is independent of length of transmission line.

Athirah said:   8 years ago
But what is L and C?

Meenakshi said:   9 years ago
400 Ω is right because here L in inductance.

Raga said:   9 years ago
How 400 will come? I think 4000 ohm is right.

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