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Surge impedance of power cables used in series with transmission line is in the range

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Surge impedance of power cables used in series with transmission line is in the range
1. 400 - 600 Ω
2. 600 - 1500 Ω
3. 40 - 250 Ω
4. 200 - 500 Ω
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Correct Answer - Option 3 : 40 - 250 Ω

Surge impedance is the ratio of voltage and current at any point along an infinitely long line. In power cables it is around 40 Ω, for transmission lines it is around 400 Ω.

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