Hi, just reviewing some of my physics material, and realized I had a question that has never been answered for me. I know that charged particles, traveling parallel to a magnetic field, feel no force either forwards or backwards, but feel a force perpendicular that causes them to spiral clockwise or counterclockwise, depending on the charge of the particle, in this field. However...each charged particle has by definition its own tiny magnetic field. Will this field interact with the larger, superimposed field? My common sense tells me that it must, as (in a macro example) I see bar magnets interacting with each other to create magnetic attraction or repulsion, respectively, between their poles. So my question is, will the magnetic fields of the moving particles interact with the superimposed field, and what will be the direction of such a force? The answer is probably simple but evades me for now. Thanks for helping!