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Magnetic flux and force

  1. Mar 10, 2010 #1
    1. The problem statement, all variables and given/known data
    Is the magnetic force on the wire loop in a direction tha would tend to increase or decrease the change in net flux through he wire loop.(This situation has a solenoid with current running through it right next to it, the current is being turned on and off.)


    2. Relevant equations

    flux=integral of B dot dA
    induced emf=-N time the derivative of flux with respect to time

    3. The attempt at a solution
    I have my force vectors, and my magnetic moments, and Isee they are in the same direction, and I have found the induced emf, and current, but I don't see the relationship between the magnetic force on the loop and the change in flux. Could someone help point me out in the right direction here.

    I feel like the best thing I could do would be to find an equation to plug in for B that is in terms of force but I have no such equation.

    Thank you.
     
  2. jcsd
  3. Mar 13, 2010 #2

    phyzguy

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