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Several physics questions

  1. Dec 10, 2007 #1
    Yes, I am a newbie in this forum. I came from Hong Kong... and well, the question is the same as above , What are the precautions of using current balance to measure the constant magnetic flux density? as much as you can.

    Moreover, How can a hall probe be used to measure alternating b-field?
  2. jcsd
  3. Dec 10, 2007 #2
    plus, can eddy current be measured?
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