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Homework Help: Induced EMF Moving Current Loop

  1. Dec 8, 2011 #1
    1. The problem statement, all variables and given/known data

    See figure attached.

    2. Relevant equations



    3. The attempt at a solution

    I'm having some confusion about the negative sign within this problem.

    If you compute the curl of the expression shown in the figure you'll find that it's equal to,

    [tex]-10v_{0} \hat{k}[/tex]

    But if we take the direction of the normal of the surface to be

    [tex]-\hat{k}[/tex]

    so it points in the same direction that negative sign in his solution should go away, correct?
     

    Attached Files:

  2. jcsd
  3. Dec 8, 2011 #2
    In the problem they tell you the line integral is in the counter-clockwise direction, the minus sign just means the current flows clockwise.

    Hope this helps.
     
  4. Dec 9, 2011 #3
    Sorry I misunderstood your comment.

    This is more clear now.
     
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