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For a 400 kHz transmission line having L = 0.5 mH/km, C = 0.08 mF and negligible R and G, the value of propagation constant P will be

15.9 radians/km
31.8 radians/km
63.6 radians/km
105.4 radians/km

Correct Answer: 15.9 radians/km

Explanation:

γ = a + jβ, a = 0 β = ωLC.

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