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Magnetic Field due to a finitely long wire

  1. Dec 9, 2014 #1
    1. The problem statement, all variables and given/known data
    https://imagizer.imageshack.us/v2/935x701q90/540/k2taHx.jpg [Broken]

    2. Relevant equations


    3. The attempt at a solution
    I think I got the idea to solve the B1 (the circular segment) and the ones that I wrote "zero", but I'm a bit confused on the straight ones (B2 and B3)....
    I'm using the Biot-Savart law, but have no idea what goes inside the integral of (dl x r hat)/r2
     
    Last edited by a moderator: May 7, 2017
  2. jcsd
  3. Dec 9, 2014 #2

    haruspex

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  4. Dec 9, 2014 #3
    Thanks for the help!

    Therefore, is it correct if the total magnitude of B is B1+B2+B3 (where B2 and B3 are equal and in same direction), and all of them have a direction pointing into the page?
     
  5. Dec 9, 2014 #4

    haruspex

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    Sounds right.
     
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