Science Memes

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try fingers but hole (mander.xyz)

submitted 1 month ago* (last edited 1 month ago) by [email protected] to c/[email protected]

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[–] [email protected] 7 points 1 month ago (5 children)

This rule always pissed me off because it makes absolutely no sense to me and it's terrible as a shorthand but my physics professors could not stop preaching it for any length of time to come up with something better

[–] [email protected] 4 points 1 month ago

If the flow of current follows in the direction the index finger is pointing, then the the magnetic field lines will flow in the direction the middle finger is pointing, the thumb points in the direction that the force is exerted.

https://youtu.be/ySx84Ca7BFQ

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