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Quick question about magnetic fields

  1. Apr 4, 2005 #1
    given that B = (6x, -9y, 3z) find the total force experienced by a rectangular loop in the z = 0 plane.
    1<x<3
    1<y<2

    i used the torque equation, but my question is if i have to do the integration for all 4 sides of the rectangle.
    T = int(dl cross B)
     
  2. jcsd
  3. Apr 4, 2005 #2

    dextercioby

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    I don't get it,what's the curreent in the loop?

    Daniel.
     
  4. Apr 4, 2005 #3
    oh yea, theres 5 A in the counterclockwise direction
     
  5. Apr 4, 2005 #4

    dextercioby

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    Okay,then.U know the expression for the electromagnetic force (the one containing the cross product) in diff.form.Apply it for the 4 sides of the rectangle and do those integrations (u need them,because the field is not constant) .Then simply add the 4 resulting vectors...

    Daniel.
     
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