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Dipole moment |
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Dipole moment A mathematical quantity characteristic of a dipole unit equal to the product of one of its charges times the vector distance separating the charges. The dipole moment μ associated with a distribution of () electric charges qi is given by where r i is the vector to the charge qi. For systems with a net charge (for example, positive), the origin is taken at the mean position of the positive charges (and vice versa). Dipole moments have the dimensions coulomb-meters. Molecular dipole moments were previously expressed in debye units, where 1 debye = 3.336 × 10-30 C · m. See Dipole![]() 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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Examples of observables of this kind are the electric dipole moments of the neutron and atoms, and T-odd correlations in leptonic and semileptonic decays. This can be attributed to the increased number of dipole moments along the polymer backbone. In bulk, ice has not net polarization, but in small enough groups, the water molecules in ice are free to cluster together so that their dipole moments are aligned in the same direction. |
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