Resumo

TORRES DEL CASTILLO, G.F.. The linear and the angular momentum stored in a distribution of charges in a magnetic field. Rev. mex. fis. [online]. 2023, vol.69, n.5.  Epub 28-Out-2024. ISSN 0035-001X.  https://doi.org/10.31349/revmexfis.69.050701.

We show that it is possible to define, e.g., the z-component of the linear momentum of the system formed by a charged particle and a magnetic field if and only if the magnetic field is invariant under translations along the z-axis. Similarly, it is possible to define the z-component of the angular momentum of the system formed by a charged particle and a magnetic field if and only if the magnetic field is invariant under rotations about the z-axis.

Palavras-chave : Linear momentum; angular momentum; electromagnetic field; symmetries.

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