A magnetic field is the area surrounding a magnet in which the effects of that magnet may be observed. A magnetic field is represented by imaginary lines of force which we call magnetic flux (symbol...
Well a reguler magnetic field is fine because if you carry magnetic objects or metal it won't be harmed however you walk over an external magnetic field with metal or magnetic objects you will be...
An object that creates a magnetic field will exert a magnetic force an a moving, charged particle. How it does this is part of the fundamental nature of the universe.