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Magnetic field at the center of a square conducting loop

  1. Apr 20, 2015 #1
    1. The problem statement, all variables and given/known data
    Problem and solution attached

    2. Relevant equations
    B = [4uI/(4pi)]sin(theta1-theta2]

    3. The attempt at a solution
    I understand fully how to do it except determining the value of theta1 and theta2. The solution says theta1 is 45(deg) and theta2 is -45(deg). How did they get those values?
     

    Attached Files:

  2. jcsd
  3. Apr 20, 2015 #2

    TSny

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    Homework Helper
    Gold Member

    What is the geometrical interpretation of the angles θ1 and θ2? You might need to refer back to equation 30.4 in your textbook. There's probably a figure in the text that will be helpful.
     
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