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Relationship between density of energy and magnetic force

  1. Dec 12, 2014 #1
    What is the relationship between density of energy stored in a magnetic field and the magnetic force?
     
  2. jcsd
  3. Dec 12, 2014 #2

    DEvens

    User Avatar
    Education Advisor
    Gold Member

    F = q v X B

    Homework: Look up the energy density of a magnetic field.
     
  4. Dec 13, 2014 #3
    The energy of a density field is ((B_0)^{2}) / (2\mu). I am looking for a direct formula as such linking these two. Lets say I have the value for density of energy, how can we find the magnetic force?
     
  5. Dec 13, 2014 #4

    Dale

    Staff: Mentor

    Solve the energy density for B. Then substitute that into the expression for F. Note, you will only be able to solve for the magnitude.
     
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