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Force and magnets

  1. Jul 14, 2015 #1

    Is it known what is the minimum force of attraction between two magnets needed for a human being to feel an attraction pull between the magnets? or is there a formula for that?

  2. jcsd
  3. Jul 14, 2015 #2


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    Science Advisor

    Depends to which body parts you attach the magnets.
    Last edited by a moderator: Jul 14, 2015
  4. Jul 14, 2015 #3
    just if you hold the magnet with your hand, for example a magnet attracted to a fridge; what is the force that needs to exist between the magnet and the fridge for you to feel they are attracting each other
  5. Jul 14, 2015 #4


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    Staff: Mentor

    There's no formula - you're just asking what the weakest force a human can feel is. We're much more sensitive to changes in pressure than to either constant pressures or forces: If there's a spider resting on the palm of your hand, you'll be able to feel it picking up one leg, even though the change in force is minuscule.
    Last edited by a moderator: Jul 14, 2015
  6. Jul 14, 2015 #5
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