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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


    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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