this post was submitted on 19 Jan 2025
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[–] yokonzo@lemmy.world 6 points 1 month ago (2 children)

Coins aren't magnetic though

[–] ch00f@lemmy.world 7 points 1 month ago (3 children)

Don't need to be. MRI will induce current in them which will make them magnetic.

[–] madnotangry@lemmy.world 10 points 1 month ago (1 children)
[–] ch00f@lemmy.world -1 points 1 month ago* (last edited 1 month ago) (1 children)

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.

[–] sploosh@lemmy.world 3 points 1 month ago
[–] Lemminary@lemmy.world 4 points 1 month ago (1 children)

US ones aren't but other countries exist