Magnetic field at the center of a square conducting loop

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Homework Statement


Problem and solution attached

Homework Equations


B = [4uI/(4pi)]sin(theta1-theta2]

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?
 

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Answers and Replies

  • #2
TSny
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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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