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How should i correct speed to keep induction constant for different viscosities

  1. Dec 22, 2009 #1
    So i am going to be dropping a magnet through a coil that is a submerged in a liquid. Say that this liquid is 100% lemon juice, how would i get the magnet to approximately fall through the coil at the same rate for the submerged coil and a coil that is not submerged?
     
  2. jcsd
  3. Dec 25, 2009 #2
    Does my question not make sense or is something wrong with it?
     
  4. Dec 25, 2009 #3

    diazona

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    I don't know, it may have been overlooked... but there doesn't seem to be much to it. You'd just use a weaker magnet, or add resistance to the coil, when it's falling through the liquid.
     
  5. Dec 25, 2009 #4
    I have lots of ideas on how to do it but I do not know by what factor, or how to get viscosity into the equation.
     
  6. Dec 30, 2009 #5
    Its been a week since my original post, is this in the wrong section?
     
  7. Dec 31, 2009 #6
    I accept with information: it may have been overlooked but there doesn't seem to be much to it. You'd just use a weaker magnet, or add resistance to the coil.
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  8. Dec 31, 2009 #7
    Again, I already have different ideas about how I should adjust the setup to balance the viscosity, but I do not know by how much I should adjust it. Say I have liquid with a viscosity of 1.0 pascal seconds and another with 0.50 pascal seconds, I am using a hypothetical coil with zero resistance, by how much should the resistance be increased for the substance with viscosity of 1? Is there no equation for this?
     
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