Multipolar Expansion Model (3D) (Q6675438)
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mathematical series approximating an angle-dependent function
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Multipolar Expansion Model (3D) |
mathematical series approximating an angle-dependent function |
Statements
Multipole expansions are often used to represent electromagnetic fields, where the fields at distant points are given in terms of sources (charges and/or currents) in a small region (far field limit). The first term is called the monopole moment, the second term is called the dipole moment, the third term the quadrupole moment, etc.
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