Skin effect – Wikipedia
Posted by jpluimers on 2019/09/23
Skin effect is the tendency of an alternating electric current (AC) to become distributed within a conductorsuch that the current density is largest near the surface of the conductor, and decreases with greater depths in the conductor. …
At high frequencies the skin depth becomes much smaller. … Because the interior of a large conductor carries so little of the current, tubular conductors such as pipe can be used to save weight and cost.
Via [WayBack] Odd: “copper” central lead of antenna cable attracted by magnetic screwdriver tip. – Jeroen Wiert Pluimers – Google+
–jeroen
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