Examples of Multipole Expansions
There are many types of multipole moments, since there are many types of potentials and many ways of approximating a potential by a series expansion, depending on the coordinates and the symmetry of the charge distribution. The most common expansions include:
- Axial multipole moments of a potential;
- Spherical multipole moments of a potential; and
- Cylindrical multipole moments of a potential
Examples of potentials include the electric potential, the magnetic potential and the gravitational potential of point sources. An example of a potential is the electric potential of an infinite line charge.
Read more about this topic: Multipole Expansion
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