Which phenomenon reduces a transmission line's power transfer when frequency increases?

💡 Explanation

As frequency increases, the capacitive reactance of the transmission line decreases and inductive reactance increases, raising reactive power demand because of parasitic capacitances and inductances between the conductors, reducing the real power delivered down the line. Therefore increased reactive power demand result, rather than radiative losses, skin effect influencing resistance, or dielectric losses raising shunt conductance, which depend more strongly on geometric specifics and conductor material effects.

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