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Which outcome occurs within a coaxial cable when signal frequency increases?

A)Skin effect concentrates current flow
B)Impedance matching becomes less critical
C)Capacitance per unit length decreases
D)Dielectric breakdown voltage increases

💡 Explanation

The skin effect forces the current to flow closer to the conductor's surface because the increased frequency causes increased inductive reactance within the conductor, therefore current is limited to the surface, rather than distributing in depth as with DC.

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