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Homework Help: Magnetic flux help please!

  1. Feb 23, 2008 #1
    Magnetic flux....help please!

    1. The problem statement, all variables and given/known data
    A 2.02-cm-diameter solenoid passes through the center of a 8.62-cm-diameter loop. The magnetic field inside the solenoid is 0.75 T.
    A.) What is the magnetic flux through the loop when it is perpendicular to the solenoid?
    B.) What is the magnetic flux through the loop when it is tilted at a θ=60° angle? (60 degrees from the y-axis)

    2. Relevant equations
    MF = AB cosθ

    3. The attempt at a solution
    A.) wouldn't it just be zero since cos90 = 0? or is it not 90 degrees?
    B.) A = (0.0862/2)^2 * pi = 0.00584
    0.00584 * 0.75 * cos 60 = 0.002188
    and I am getting that wrong as well
  2. jcsd
  3. Feb 23, 2008 #2
    can anyone help me with this?
  4. Feb 24, 2008 #3
    does anyone know how to do this...it's due today and I still am not getting it right...
  5. Feb 24, 2008 #4
    I'm not certain what your exact setup is. can you ignore the magnetic field on the outside of the solenoid? It won't be equal to 0.75 T there.
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