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Magnetic Field Strength versus Coil Density

  1. May 1, 2014 #1
    1. The problem statement, all variables and given/known data
    We did a lab where we measured the magnetic field strength of a wire coil versus the coil density of the wire coil, keeping current constant. We determined the relationship of B (magnetic field strength) versus n (coil density) to be direct. I need to explain why this is true physically (as in, beyond the formulas why does this actually happen), and I have no idea why.


    2. Relevant equations
    β=μIn


    3. The attempt at a solution
    I have no idea at all and need help!
     
  2. jcsd
  3. May 2, 2014 #2

    BvU

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    Just like electric fields, magnetic fields from different sources add up. So two loops "produce" two times what one loop "produces".
     
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