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Magnetism paradox

Last Modified: 2019-01-15
I was thinking about magnetism and it seems that both immobile charges are affected.

We have a wire conducting current and we have a positive charged cat.

At our rest frame the cat won't be repulsed from the wire . But in another frame when we consider the electrons (which are the current) immobile then due to length contraction the charge density of both the cat and the nuclei will be increased so a repulsive force will exist.
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