anonymous
  • anonymous
two long parallel straight wire are seperated by a distance r in vacuum. an electric current flow through each wire in opposite direction, the magnetic flux density at the centre between 2 wires is (2)(ε0)/(πr) ... can someone explain why?
MIT OCW Physics
katieb
  • katieb
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Nali
  • Nali
ok how do you know that the magnetic flux between two wires is (2)(e0)/(pi times r) ?
Nali
  • Nali
\[\large \phi B =B A \cos (\theta)\]
Nali
  • Nali
ϕB=BAcos(θ) is for finding the magnetic flux density

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