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Ampere's law

  1. Oct 20, 2008 #1
    1. The problem statement, all variables and given/known data

    A 1.88 m long wire carrying 3.1 A is wound into a tight, loop shaped coil 0.05 cm in diameter. What is the magnetic field at its center?
    2. Relevant equations

    3. The attempt at a solution
    I use Ampere's law but i get the wrong answer. I think i did not set up the equation right. Please i need answer with equation so i can compare it to mine not a chat.
    Thank you for your comprehension.
  2. jcsd
  3. Oct 20, 2008 #2


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    Staff: Mentor

    Post the work that you did, and then we can try to help you. We do not give out answers here on the PF (check the Rules link at the top of the page).

    What equations are you using? I'm also moving this thread to Intro Physics.
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