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Bobbin into a magnetic field

  1. Nov 20, 2016 #1
    1. The problem statement, all variables and given/known data
    A rectangular bobbin of 50 turns is got sides of 5.00 and 8.00 cm and carries a current of 1.75 A. I'ts orientated as shown in figure 37º and turns around z axis. Determine the potential energy of the bobbin when its inside a uniform magnetic field of 1.5T in the y axis (potential energy is zero when angle is zero)

    2. Relevant equations
    dU=-muBsinthetadtheta
    mu=NIA=0.35 Am2
    B=1.5T
    theta= angle between magneticfield and normal vector to the bobbin
    3. The attempt at a solution
    Integrate dU. Solution -0.315 J
     
  2. jcsd
  3. Nov 21, 2016 #2

    DrClaude

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    Staff: Mentor

    Can you show your work? And what exactly is your question?
     
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