The vector potential of a steady azimuthal current density. Once again
Fuente:
arXiv
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866918159664021504 |
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| author | Bouzas, Antonio O. |
| author_facet | Bouzas, Antonio O. |
| contents | We give an integral expression for the vector potential of a time-independent, steady azimuthal current density. Our derivation is substantially simpler and somewhat more general than others given in the literature. As an illustration, we recover the results for the vector potential of a circular current loop as an orthogonal expansion in spherical and cylindrical coordinates. Additionally, we obtain closed analytical expressions for the vector potential and the magnetic induction of a circular current loop in terms of Legendre functions of the second kind, that are simpler than the results in terms of complete elliptic integrals given in textbooks. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_11663 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | The vector potential of a steady azimuthal current density. Once again Bouzas, Antonio O. Classical Physics We give an integral expression for the vector potential of a time-independent, steady azimuthal current density. Our derivation is substantially simpler and somewhat more general than others given in the literature. As an illustration, we recover the results for the vector potential of a circular current loop as an orthogonal expansion in spherical and cylindrical coordinates. Additionally, we obtain closed analytical expressions for the vector potential and the magnetic induction of a circular current loop in terms of Legendre functions of the second kind, that are simpler than the results in terms of complete elliptic integrals given in textbooks. |
| title | The vector potential of a steady azimuthal current density. Once again |
| topic | Classical Physics |
| url | https://arxiv.org/abs/2510.11663 |