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The magnetic flux and the induce emf in the dynamo.

  1. Jun 5, 2017 #1
    1. The problem statement, all variables and given/known data
    Multiple-choice question:
    1itFp.jpg

    2. Relevant equations


    3. The attempt at a solution
    I know that the induced emf is maximum when the coil is parallel to the direction of the magnetic flux, so I should choose either B or C, and I have read the the rate by which the coil cut the magnetic flux is maximum when it is parallel to the direction of the flux, So I would choose C, is my answer correct? Because I am not sure about the point of the magnetic flux.
     
  2. jcsd
  3. Jun 5, 2017 #2

    cnh1995

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    Yes.
    Yes.

    What is the flux linking with the coil when it is parallel to the field?
     
  4. Jun 5, 2017 #3
    Excuse me, but I don't understand the term "flux linkage".
     
  5. Jun 5, 2017 #4

    cnh1995

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    Flux linkage of a loop means the flux linking with the loop i.e. the flux passing through the loop.
    What is this flux linkage when the coil is parallel to the field lines?
     
  6. Jun 5, 2017 #5
    Hmm, I don't know, might be a maximum value? Right?
     
  7. Jun 5, 2017 #6

    cnh1995

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    images (7).jpg
    What is the flux linking with the coil?
     
  8. Jun 5, 2017 #7
    Zero?!
    In a coiled wire the flux linkage will be maximum when the coil is perpendicular to the magnetic flux, and it will be zero when it is parallel to the magnetic flux.
    Do you mean that in dynamo coils it is the same?
     
  9. Jun 5, 2017 #8

    cnh1995

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    Yes and yes.
     
  10. Jun 5, 2017 #9
    OK and Ok.
    Thank you!
     
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