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How do you find the B field between finite wires?

  1. Jun 7, 2010 #1
    I know the results for infinite, but how about finite? And where is the cutoff with the aproximation of infinite? Ive heard the value 10% tossed around is that right?
     
  2. jcsd
  3. Jun 8, 2010 #2
    if u have used bio savart law to find the field of an infinite wire, u wud have integrated along the comple length (infinite) of the wire.
    now just integrate along the finite ength of the wire
     
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