Using Faradays Law

  • Thread starter HelpMeh
  • Start date
  • #1
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Hi


Could someone explain why

ε=Δ∅/Δt

becomes 2∅/Δt?? i dont see how the change in magnetic flux is 2∅.
 

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Answers and Replies

  • #2
BruceW
Homework Helper
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the plane of the coil is flipped so that the normal to the plane becomes opposite. Therefore the flux is negative of what it was before, so the total change in flux is twice the absolute value of flux through the coil.
 

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