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B Magnetic field of a single charged particle

  1. Sep 12, 2017 #1
    Let's say that there's nothing else in this universe except for 2 charged particles: q1 and q2.
    q1 is moving relative to q2, moving at velocity v. I've read that a magnetic field is made by a moving charge. In this case, the moving charge q1 is moving relative to q2. What would the magnetic field made by q1 look like? Would it look circular, like the ones made by a current-carrying wire?
  2. jcsd
  3. Sep 12, 2017 #2


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  4. Sep 12, 2017 #3
    Is it circular just because it is or is there some other reason why?
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