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magnetic dipole |
Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson | 0.08 sec. |
magnetic dipoleTiny magnet with subatomic dimensions, equivalent to the flow of electric charge around a loop. Examples include electrons circulating around atomic nuclei, rotating atomic nuclei, and single subatomic particles with spin. On a large scale, these effects may add together, as in iron atoms, to make magnetic compass needles and bar magnets, which are macroscopic magnetic dipoles. The strength of a magnetic dipole, its magnetic moment, is a measure of its ability to turn itself into alignment with a given external magnetic field. When free to rotate, dipoles align themselves so that their moments point predominantly in the direction of the magnetic field. The SI unit for dipole moment is the ampere-square metre. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The experiment to measure the neutron EDM is based on the magnetic resonance technique of rotating a magnetic dipole moment in a magnetic field. Ethertronics, the Ethertronics logo, shaping antenna technology, Isolated Magnetic Dipole and IMD are trademarks of Ethertronics. As a demonstrative example one may consider a neutron coupling to a magnetic field H(R(t)) = -[mu] * B(R(t)) due to its magnetic dipole moment [mu] = [[mu]. |
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