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Semi infinite and infinite wire

  1. Jun 24, 2015 #1
    I am studying magnetic field and I could not distinguish the difference of semi-infinite and infinite wire. Can someone please explain briefly the difference of these two? Thank you.
  2. jcsd
  3. Jun 24, 2015 #2
    I would imagine an infinite wire would run from -infinity to +infinity.
    A semi infinite wire would be from some value to +/- infinity.
  4. Jun 24, 2015 #3
    infinite means no end on both sides semi infinite means which is fixed at one point and other point is not fixed eg line infinite and ray semi infinite
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