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← ScienceWhich 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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