Linked from
The 17 pages that link to Skin effect, each with the reason it gives.
Current densityRelated: It makes current density nonuniform across a conductor at high frequencies.
Induction heatingRelated: It affects how deeply induced currents and heat penetrate the workpiece.
Eddy currentRelated: Time-varying eddy currents redistribute current toward the conductor’s surface.
BusbarRelated: It changes the effective resistance of busbars carrying alternating current.
Microwave techniquesRelated: Skin effect raises conductor losses in microwave circuits.