|MadSci Network: Physics|
Hi Jay, Pictures of bar magnets or even the earths magnetic field commonly use arrows to represent the direction and magnitude of the magnetic field. Very often the arrows originate at the north pole and terminate at the south pole, which implies a flow. Magnetism does not flow. Magnetism is a force which a magnet exerts on other objects. The force, represented by the arrows, is strongest at the location of the poles and weaker in areas between the poles. Electrical currents (flow of electrons) are generated when an electrical conductor (metal) moves in the presence of a magnetic field. The magnetic force combined with the motion of the conductor creates an electrical current. Bob Novak Specialist - Process R&D Carpenter Technology
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