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Simple Magnetic Flux Prob

  1. Feb 23, 2008 #1
    Simple Magnetic Flux Prob....

    1. The problem statement, all variables and given/known data

    What is the magnitude of magnetic flux through the loop? (a=22 cm, b=27 cm, B1=1.2 T, B2=1.7 T.)

    2. Relevant equations
    MF = AB cos theta

    3. The attempt at a solution
    MF = AB
    So wouldn't I just do ((0.2m * 0.2m) * 1.2) + ((0.22m * 0.27m) * 1.7)
    but thats not getting me the right answer...what am I doing wrong?
  2. jcsd
  3. Feb 23, 2008 #2
    Remember that the fields point in opposite directions in the two regions...
  4. Feb 23, 2008 #3
    oh yea thank you!
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