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Magnetic Fields - Calculating average induced emf Watch

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    Hmmmm I'm not sure how to do this question??
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    (Original post by LeCroissant)
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    Hmmmm I'm not sure how to do this question??

    IT is just NBA/time = both of which you have.
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    (Original post by anujsr)
    IT is just NBA/time = both of which you have.
    Oh okay, thank you!
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    (Original post by LeCroissant)
    Oh okay, thank you!
    how many marks is the question?
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    (Original post by anujsr)
    how many marks is the question?
    3 marks.

    Which value of flux density would you use though? Because it moves from a position where the flux density is 9.0mT to a position where it is 23.0mT . Or would you just use the change in flux density (23mT - 9.0mT) in the equation?
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    (Original post by LeCroissant)
    3 marks.

    Which value of flux density would you use though? Because it moves from a position where the flux density is 9.0mT to a position where it is 23.0mT . Or would you just use the change in flux density (23mT - 9.0mT) in the equation?
    The equation used is delta NBA/ delta time. So yes you would use 23mT-9mT.
    Also note the use of the term average flux. Hence delta time. Hope this helps.
 
 
 
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