This is an area of active research. Some serious theories say they might exist, but so far, none have been found.but if they exist,we will find it in BIG BANG
All magnetisim is due to moving charges. The best way to think of why all magnets have two poles is to think of a coil of wire with a current in it. This will create a magnet very much like a bar...
Magnetic fields exist because physics views the Universe as three space dimensions and one time dimension. Actually, the Universe is quaternionic and contains four space dimensions, one real...
A magnetic field is induced by moving electric charges, either by an actual electric current, or the way that electrons (charged particles) spin around the nucleus [in the case of magnetic materials...