A transmission line whose characteristic impedance is a

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A transmission line whose characteristic impedance is a pure resistance—

1. Must be a lossless line
2. Must be a distortionless line
3. May not be a lossless line
4. May not be a distortionless line
5. (C) & (D)

Correct Option: E

We know that,

Z₀ =	√	R + jωL
		G + jωC

With Z₀ as pure resistance, we have
Z₀ = R + j₀
1. Lossless line has: R = G = 0;
∴ Z₀ = √L/C
2. Distortionless line: R/ G = L/C
3. L = 0, C = 0, Z = √R/G Thus transmission line may be lossless, distortionless or with L = C = 0.