this post was submitted on 19 Jan 2025
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Coins aren't magnetic though
Don't need to be. MRI will induce current in them which will make them magnetic.
https://en.wikipedia.org/wiki/Faraday's_law_of_induction
https://en.wikipedia.org/wiki/Amp%C3%A8re%27s_circuital_law
Edit: for the pedants in the audience, I’m aware that they won’t be turned into permanent magnets. What I meant is that the electrons flowing through them will make them react to a magnetic field.