We consider the relativistic polarization of a rotating magnetized medium in the framework of the approach suggested earlier (A L Kholmetskii and T Yarman 2010 Eur. J. Phys. 31 1233), which is based on the charge conservation law and relativistic generalization of the first Kirchhoff law to a closed moving circuit carrying steady current. We show that the polarization of a magnet brought to a rotation differs, in general, from the relativistic polarization of a translationary moving magnet, and on this way we give one more explanation to the familiar Wilson & Wilson experiment, with the explicit demonstration of the implementation of the charge conservation law.
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