What does skin effect increase in the conductor?

The skin effect refers to the phenomenon where alternating current (AC) tends to flow near the surface of a conductor rather than uniformly throughout its entire cross-section. As frequency increases, the current density becomes more concentrated at the surface, effectively reducing the cross-sectional area through which current flows.

This concentration of current at the surface leads to an increase in the effective resistance of the conductor. The increased resistance is a direct result of the reduced area available for current to flow, which means that more surface area is required to carry the same amount of current, thereby raising the resistive losses in the conductor.

Additionally, a higher resistance can lead to increased voltage drops across the conductor if current remains constant, but the primary consequence of the skin effect itself is the increase in resistance, which impacts performance characteristics of electrical systems. Therefore, the skin effect directly correlates with an increase in resistance within the conductor.