Dipole Moment

Dipole moment can be defined as the product of magnitude of charge and the distance of separation between the charges. Dipole moment may refer to:

  • Electric dipole moment, the measure of the electrical polarity of a system of charges
    • Transition dipole moment, the electrical dipole moment in quantum mechanics
    • Molecular dipole moment, the electric dipole moment of a molecule.
    • Bond dipole moment, the measure of polarity of a chemical bond
    • Electron electric dipole moment, the measure of the charge distribution within an electron
  • Magnetic dipole moment, the measure of the magnetic polarity of a system of charges
    • Nuclear magnetic moment, the magnetic moment of an atomic nucleus
  • Topological dipole moment, the measure of the topological defect charge distribution
  • The second order coefficient of the multipole expansion of a function

Famous quotes containing the word moment:

    “... the moment we try to fix our attention upon consciousness and to see what, distinctly, it is, it seems to vanish: it seems as if we had before us a mere emptiness. When we try to introspect the sensation of blue, all we can see is the blue; the other element is as if it were diaphanous. Yet it can be distinguished if we look attentively enough, and know that there is something to look for.”
    —George Edward Moore (1873–1958)