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Magnetism problem

  1. May 3, 2007 #1
    1. The problem statement, all variables and given/known data

    A long straight conductor carries a current I.Determine force per unit length of the conductor when it is placed in a unifrom magnetic field B.

    2. Relevant equations

    3. The attempt at a solution

    I got BI sin(theta) where theta is the angle between wire and the B field.
    Please check if I am correct.
  2. jcsd
  3. May 3, 2007 #2


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    Homework Helper
    Gold Member

    I believe you are correct, since:

    [tex] F/L = \vec{I} X \vec{B} = IB\sin\theta[/tex]
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