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Sources of Magnetic Fields

  1. Jul 19, 2009 #1
    1. The problem statement, all variables and given/known data
    http://s619.photobucket.com/albums/tt272/babyazureyoshi/?action=view&current=014.jpg


    2. Relevant equations
    1) B_x = (µ_0 * I) / 2R at x = 0


    3. The attempt at a solution
    I know that segments BC and DA do not contribute to the magnetic field at O so all I need to know is the contribution for segments AB and CD. Using equation one, I simplified the formula to ((µ_0 * I) / 2) * ((1/0.6) +(1/0.4)).
     
    Last edited by a moderator: Apr 24, 2017
  2. jcsd
  3. Jul 19, 2009 #2

    rl.bhat

    User Avatar
    Homework Helper

    The relevant equation is for the circular conductor.
    Ηere you have to use
    B = μ_o/4π*Ι*L/R^2.
    Since angle subtended by the segments at the center is π/3, you can find the lengths of the segments by using the formula L = R*θ
     
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