A fact little known to the wider scientific community is that the left hand rule was actually developed by eromagnetists investigating the Hall effect in relation to.. er.. “viscous fluids” moving through a.. um.. “cylinder” oriented perpendicularly to a magnetic field. This was where the first idea for a toroid shaped magnet was developed, for.. obvious reasons.
So next time you’re not sure which way the charges will move under the influence of a current moving ⊥ to a magnetic field, you can thank Eromagnetists and their free hand for helping you figure it out.
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u/tatojah 8d ago
Physicist here.
This is the electromagnetism subfield called eromagnetism. Most who dedicate their life to it become pariahs in the scientific community.
And deservedly so. Magnets have rights and aren't there to indulge your depravity.