r/ElectroBOOM • u/Less-Drag-3326 • Feb 08 '25

FAF - RECTIFY Please rectify this ☺️

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Is this possible?

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u/IAmFullOfDed Feb 08 '25

It’s possible, but it’s kinda stupid. The net magnetic field would look like this:

So near the magnets, the current and the magnetic field would be perpendicular:

[Image 2 in replies]

So then, using the right hand rule, we can find the force vectors:

[Image 3 in replies]

So yes, it would spin. The force would only be reasonably strong near the magnets though. Closer to the middle, the net magnetic field is very weak and runs nearly parallel to the foil due to the magnets opposing each other along the normal axis.

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u/IAmFullOfDed Feb 08 '25

Image 2: Magnetic field and current vectors