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Electromagnetic expriment

  1. Aug 8, 2005 #1

    please introduce me an electromagnetic expriment so that we can measure magnetic field in a solonoid.
    I would like to use it for physics junior students.
    Thank you.
  2. jcsd
  3. Aug 9, 2005 #2
    When I was in my E & M class, we used probes that plugged into the USB port of a computer to measure weak magnetic fields. I have no idea how much they cost, though they seemed like they would be cheap. One other simple way to measure the field strength is to move a coil of wire into the middle of the solenoid starting from far away. Then, measure the EMF across that coil as a function of time, and use the result to calculate the magnetic field.
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