Ok my question is pretty simple and is in two parts. 1. say you created an em field what would have to an em wave the is propogating towards it. 2. what would would to an em wave if it went through an em coil. If you could would you be able to point me in the direction a website that has information related to this. I've tried searching on google but the only results I get have to do with generating em wave and fields with nothing on the interaction between them. Thanks in advance for any help that you can give.