Hello, I've just entered this forum and... the world of Physics. And I already have tremendous enigmas. Let's start with this. Oersted revealed that a static magnetic field exists in the nearby of a current loop. Now "current" means "moving electric charges" and e.m. theory states that a moving charge generates a e.m. field. As a consequence, any current should be an e.m. waves generator (a transmitter), isn't it? If this is so, why are we able to detect only a static magnetic field in an Oersted-like experiment and not a varying magnetic field, along with its associated varying electric field, that again causes a magnetic field... in a word, what we call an e.m. wave? I'm sure there's some basic idea in e.m. theory that I haven't really understood May anyone help me? Thanks.