Dictionary:Skin depth

The effective depth of penetration of electromagnetic energy in a conducting medium when displacement currents can be neglected. The depth at which the amplitude of a plane wave has been attenuated to 1/e (or 37 percent):

${\text{skin depth}}=\delta ={\sqrt {\frac {2}{\sigma \mu \omega }}}=503{\sqrt {\sigma f}}$,

where $\sigma$=conductivity in mhos/meter, $\mu$=permeability in henries/meter, $\omega$=angular frequency in radians/second, and f=frequency. Also called effective depth.

External links

find literature about Skin depth