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Using Faradays Law

  1. Apr 19, 2012 #1

    Could someone explain why


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

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  2. jcsd
  3. Apr 19, 2012 #2


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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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