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Homework Help: The Magnetic Flux through a Solenoid

  1. Nov 9, 2008 #1
    1. The problem statement, all variables and given/known data

    Find the magnetic flux through a solenoid of length 31.2 cm, radius 1.5 cm, and 610 turns that carries a current of 3.8 A.
    (in Wb)

    2. Relevant equations

    B_solenoid=u0*N*I/L

    Flux= B *A


    3. The attempt at a solution

    So to find the magnetic field, I plugged the values into the equation like this: u0*610*3.8/.312=9.34*10-3.

    And I've tried doing pi*(.0152) for the area, and multiplying them together, and I didn't get the right answer.

    I tried taking the total surface area of the solenoid, such as 2pi(.015)2* 2pi(.015)*(.312) and I still can't get the answer. What am i missing? I feel like this problem should be really easy...
     
  2. jcsd
  3. Nov 9, 2008 #2
    what was your answer for the flux?
     
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