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Homework Help: Magnetic dipole moment

  1. Feb 12, 2012 #1
    1. The problem statement, all variables and given/known data

    A wire is bent into the shape shown in the figure. The semi-circular part has a radius r = 4.00 cm and the rectangular part has a width w = 1.00 cm. A current of 0.300 A runs through the loop. What is the magnitude of the magnetic moment of the loop?

    Note: The figure shows a semicircle with a small rectangle at the bottom. Making the rectangle 1cm by 8cm.

    2. Relevant equations

    u=NIA
    Area of a circle
    A=lw

    3. The attempt at a solution

    I have plugged in the values given and added the area of a rectangle to half the area of the circle, and I used one for the amount of loops.
    So u=(1)(0.300)((.04^2 pi x0.5)+(.01x.08)

    The answer I am getting is 9.9398e-4 which is incorrect. Any help is appreciated! Thanks!
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
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