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What exactly is a magnetic field?

  1. Aug 21, 2013 #1
    What exactly happens when a charged body is in motion.What change does it bring about in the space surrounding it.
  2. jcsd
  3. Aug 21, 2013 #2


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    Staff: Mentor

  4. Aug 21, 2013 #3
    Thanks for the link. It was very useful
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