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skin effect

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With alternating current (AC), electrons flow more at the outer surface of the wire rather than through the middle. The higher the frequency, the more the skin effect and the greater the resistance. Stranded wire produces less skin effect than solid, because there is more surface area. The skin effect enables copper-clad steel wire to be used. The steel adds cable strength, and the current flows mostly through the better-conducting copper. See also skin.


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Despite this fact, some earlier reports had suggested that the Atacameno were less affected by arsenic than other exposed populations, giving rise to the theory that centuries of exposure had built up their resistance to the effects of arsenic, including characteristic skin effects such as dark brown spots, darkening of skin on the limbs and trunk, and keratoses on the palms of the hands and soles of the feet.
However, the integral skin effect allows molding of polyether based systems at say X (overall density), the skin density then being Y and the core being Z.
Additionally, customers now have access to a full complement of inductance models with self, mutual and skin effect modeling that is necessary for today's high frequency interconnect.
 
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