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Question

Find the magnetic induction B on the axis as a function of x.
  1. B=12μ0nI(1xx2+R2)
  2. B=12μ0nI(2xx2+R2)
  3. B=12μ0nI(Rxx2+R2)
  4. B=12μ0nI(Xxx2+R2)

A
B=12μ0nI(Xxx2+R2)
B
B=12μ0nI(1xx2+R2)
C
B=12μ0nI(2xx2+R2)
D
B=12μ0nI(Rxx2+R2)
Solution
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