multipole
Beyond simple dipole
A multipole is a configuration of electric charges or magnetic poles arranged in a specific geometric pattern, used in physics to describe how fields behave at a distance.
The simplest is a dipole (two poles); higher-order multipoles include quadrupoles, octupoles, and so on.
Multipole expansion is a mathematical technique for approximating complex charge distributions: The gravitational field can be analyzed using multipole moments.
In particle accelerators, multipole magnets focus and steer beams.
Increase in scope
- momentBrief period of time
- fieldArea of specialty
- potentialLatent capacity for development
- tensorMultilinear algebraic object
distribution · interaction · radiation · antenna · mass distribution · gravitational · electrostatic · source
Cost or accusation
- coulombUnit of electrical charge
- potentialLatent capacity for development
- capacitanceElectrical charge storage measure
- dielectricPolarizable electrical non-conductor
Paths depicting field strength
- ferromagnetismStrong atomic magnetic alignment
- paramagnetismWeak magnetic susceptibility phenomenon
- diamagnetismWeak repulsion from magnets
- magnetizationAcquiring magnetic polarity
polarization · hysteresis · permeability · susceptibility · anisotropy · flux · induction · domain
expansion
Increase in scope
tensor · distribution · interaction · radiation · antenna · mass distribution · gravitational · electrostatic · source · configuration
charge
Cost or accusation
- coulombUnit of electrical charge
- potentialLatent capacity for development
- capacitanceElectrical charge storage measure
field lines
Paths depicting field strength
- ferromagnetismStrong atomic magnetic alignment
- paramagnetismWeak magnetic susceptibility phenomenon
- diamagnetismWeak repulsion from magnets
magnetization · polarization · hysteresis · permeability · susceptibility · anisotropy · flux · induction · domain · spin