Dipole moment
Encyclopedia
Dipole moment can be defined as the product of magnitude of charge & distance of separation between the charges.
Dipole moment may refer to:
Dipole moment may refer to:
- Electric dipole momentElectric dipole momentIn physics, the electric dipole moment is a measure of the separation of positive and negative electrical charges in a system of charges, that is, a measure of the charge system's overall polarity with SI units of Coulomb-meter...
, the measure of the electrical polarity of a system of charges - Transition dipole moment, the electrical dipole moment in quantum mechanics
- Bond dipole momentBond dipole momentThe bond dipole moment uses the idea of electric dipole moment to measure the polarity of a chemical bond within a molecule. The bond dipole μ is given by:\mu = \delta \, d....
, the measure of polarity of a chemical bond - Electron electric dipole momentElectron electric dipole momentThe electron electric dipole moment de is an intrinsic property of an electron such that the potential energy is linearly related to the strength of the electric field: U=de·E. Within the standard model of elementary particle physics, such a dipole is predicted to be non-zero but very small, at...
, 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 momentNuclear magnetic momentThe nuclear magnetic moment is the magnetic moment of an atomic nucleus and arises from the spin of the protons and neutrons. It is mainly a magnetic dipole moment; the quadrupole moment does cause some small shifts in the hyperfine structure as well....
, the magnetic moment of an atomic nucleus - Molecular dipole moment, the electric dipole moment of a molecule.
- Topological dipole moment, the measure of the topological defectTopological defectIn mathematics and physics, a topological soliton or a topological defect is a solution of a system of partial differential equations or of a quantum field theory homotopically distinct from the vacuum solution; it can be proven to exist because the boundary conditions entail the existence of...
charge distribution - The second order coefficient of the multipole expansionMultipole expansionA multipole expansion is a mathematical series representing a function that depends on angles — usually the two angles on a sphere. These series are useful because they can often be truncated, meaning that only the first few terms need to be retained for a good approximation to the original...
of a function