The Epic War Warcraft 3 Map Database Affiliates. WC3MapDB 2.2.2 - ©2004-2017 Maps are provided as is and are not guaranteed to be without errors.An electromagnetic field (also EMF or EM field) is a physical field produced by electrically charged objects. It affects the behavior of charged objects in the...fundamental interaction gravity lorentz force magnetic field magnetism physics strong interaction weak interaction Eelectromagnetism. In.We would like to show you a description here but the site won’t allow us.