Answer
3
For frequency in Hertz and depth in meters,
the following formula gives the effective skin depth for
conductors with resistivities on the order of 10–6 ohm-cm,
such as copper or aluminum:
This works out to about
20 mm at 60 Hz and about 20 µm at 60 MHz.
Contributor: M.K. Suvarnakumar
Published
April 2003
