Thread:Ghelæ/@comment-29927902-20161001081010/@comment-47205-20161002151449

A particle with electric charge produces an electric field pointing outwards from it, and experiences a force when within another electric field. Magnetic effects only occur in two cases. Either the particle is moving, in which case it produces a magnetic field circulating around it, and experineces a force that acts perpendicular to its velocity. Or the particle has "spin", in which case it produces a dipole magnetic field and experiences a force that aligns this with any external magnetic field. A moving particle with spin (as all real charged particles are) will feel both of these, but usually the magnetic effects due to motion are the only important ones.

You can swap the words "electric" and "magnetic" there to create another factual description.