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Magnetic dipole

magnetic dipole
A model of an object that generates a magnetic field in which the field is considered to emanate from two opposite poles, as in the north and south poles of a magnet, much as an electric field emanates from a positive and a negative charge (each of which is a monopole) in an electric dipole. Even though the existence of magnetic monopoles as isolable particles has not been established, the magnetic dipole remains a useful simplification of the electrodynamics involved in magnetism. Magnetic dipoles experience torque in the presence of magnetic fields.


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  • Magnetic dipole moment

    noun 1. a measure of the magnetic strength of a magnet or current-carrying coil, expressed as the torque per unit magnetic-flux density produced when the magnet or coil is set with its axis perpendicular to the magnetic field m, j Also called magnetic moment Compare electromagnetic moment magnetic dipole moment A vector quantity associated with […]

  • Magnetic-disk

    noun, Computers. 1. Also called disk, hard disk. a rigid disk coated with magnetic material, on which data and programs can be stored. 2. . noun 1. (computing) another name for disk (sense 2) magnetic disk A memory device, such as a floppy disk or a hard disk, that is covered with a magnetic coating. […]

  • Magnetic-domain

    noun 1. a portion of a ferromagnetic material where the magnetic moments are aligned with one another because of interactions between molecules or atoms.

  • Magnetic-drum

    noun, Computers. 1. a cylinder coated with magnetic material, on which data and programs can be stored.

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