PHYSICS 1L03 Chapter Notes - Chapter 4: Inverse-Square Law, Flux, Alnico
21 Sep 2016
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Orbital magnetic moment: when a charged particle is in motion, a magnetic field perpendicular to the motion will be created. Spin magnetic moment or electron spin: the magnetic effect created by electrons spinning on their axes. Magnetic dipoles or magnetic domains: groups of atoms with their net magnetic field moving in the same direction. Magnetic field: the force fields that are created when magnetic dipoles orient to create a magnet; also called lines of flux and lines of force. Lines of force always flow from north to south outside the magnet and from south to north within a magnet. Flux density: (1) a measure of the intensity of magnetization produced by a magnetic field. (2) a vector quantity representing the number of flux lines crossing a unit area at right angles. 1 tesla = 10000 gauss, and magnetic flux is a measure of the strength of a magnetic field over a given area, measured in weber.
