There are plenty of examples where someone derives the magnetic force from a current carrying wire on a moving charged particle by looking at the frame of the particle and finding that the current has Lorentz contracted in such a way as to produce an electric field in an otherwise neutral wire. They then say that magnetism can be deduced from just electrostatics and SR.(adsbygoogle = window.adsbygoogle || []).push({});

Has anybody ever seen this done for a wire loop? Or for, say, an electron orbiting a nucleus a la crude model for magnetic dipole?

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# Relativistic treatment of the magnetic force from a current loop

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