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Which phenomenon reduces power transmission efficiency when length increases?

A)Increased characteristic cable impedance
B)Amplified skin impedance effects
C)Increased dielectric material breakdown
D)Elevated core ferromagnetic saturation

💡 Explanation

Amplified skin impedance effects hinder power transmission over long distances because **skin effect** concentrates current at the conductor surface via electromagnetic induction, therefore high frequency resistance increases rather than dielectric or core losses under load.

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