Hi All, In Equations for permattivity (Eo) and permeability (uo) I always get the two confused! There's also Er and Ur in these equations which I input dielectric constant? Any SI Gurus have some good input on the two? Constants: Permattivity ( eo ) = 8.85 * 10-12 F / M Permeability ( uo ) = 1.26 * 10-6 H / M Thanks, Rich ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu