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DarkNightoftheSoul@mander.xyz to 196@lemmy.blahaj.zoneEnglish · 1 year ago

Right-hand rule

en.wikipedia.org

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Right-hand rule

en.wikipedia.org

DarkNightoftheSoul@mander.xyz to 196@lemmy.blahaj.zoneEnglish · 1 year ago
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Right-hand rule - Wikipedia
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  • funnystuff97@lemmy.world
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    1 year ago

    Proctoring a physics 1 exam and seeing students do both these and curling their fingers around (thumb in direction of current, curl fingers around direction of magnetic field) was always very humerous to see.

  • ADonkeyBrainedFog@lemmy.blahaj.zone
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    1 year ago

    I was totally unable to understand that. As simple as it is. Got my physics minor basically getting every single rhr question wrong. Don’t know how I managed it

    • key@lemmy.keychat.org
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      1 year ago

      I hated the hand thing. Instead I remembered it working like the polarity of the “tan” function since that was easy for me to picture.

  • iiGxC@slrpnk.net
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    1 year ago

    a = 1 finger

    b = 1 finger

    a x b = 1 x 1 = 1 thumb

    checks out 🤓

  • moosetwin@lemmy.dbzer0.com
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    1 year ago

    electroboom singlehandedly making me remember this

  • Donjuanme@lemmy.world
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    1 year ago

    Also applicable in a modified way in biology, useful for keying snails

    • tb_@lemmy.world
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      1 year ago

      That’s kind of rude, then they’ll have to get their house repainted

  • Kevin@lemmy.world
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    1 year ago

    Tbh I never understood this rule very well and I did my undergrad in physics. My teacher or prof would teach this but I’d forget it almost instantly.

    To visualize a cross product, I just remember that x cross y = z, then remember how the axes are oriented.

  • kingthrillgore@lemmy.ml
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    1 year ago

    There’s also the left handed rule and the Unity handed rule

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