What is dipole?

  • (noun): A pair of equal and opposite electric charges or magnetic poles separated by a small distance.
    See also — Additional definitions below


In physics, there are several kinds of dipoles:

Read more about Dipole.

Some articles on dipole:

Dipole Radiation
... See also Dipole antenna In addition to dipoles in electrostatics, it is also common to consider an electric or magnetic dipole that is oscillating ... In particular, a harmonically oscillating electric dipole is described by a dipole moment of the form where ω is the angular frequency ... but is rather concentrated around the directions lying perpendicular to the dipole moment ...
Stereo Dipole
... A Stereo dipole is a sound source in an Ambiophonic system, made by two closely spaced loudspeakers that ideally span 10-30 degrees ... Thanks to the cross-talk cancellation method, a stereo dipole can render an acoustic stereo image nearly 180° wide (single stereo dipole) or 360° (dual or double stereo ...
Axilrod–Teller Potential
... dispersion interactions (instantaneous induced dipole-induced dipole) where is the distance between atoms and, and is the angle between the vectors and ... polarizability the exact value of depends on the magnitudes of the dipole matrix elements and on the energies of the orbitals ...
Spin Model - Introduction
... In ordinary materials, the magnetic dipole moments of individual atoms produce magnetic fields that cancel one another, because each dipole points in a random direction ... below their Curie temperature, however, exhibit magnetic domains in which the atomic dipole moments are locally aligned, producing a macroscopic, non-zero magnetic field from the domain ... For instance, the Ising model describes spins (dipoles) that have only two possible states, up and down, whereas in the Heisenberg model the spin vector is allowed to point in any ...
Dual-band Blade Antenna - Theory - Monopoles
... Monopole equations can be arrived by inspection of dipole antenna derivations with the knowledge that all radiation occurs in half the volume when compared ... the following equations This leads directly to the earlier stated maximum gain relation to a dipole by the definition of gain a where is the antenna radiation efficiency ...

More definitions of "dipole":

  • (noun): An aerial half a wavelength long consisting of two rods connected to a transmission line at the center.
    Synonyms: dipole antenna