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Homework Help: What is the direction of the induced current in the loop for each situation?

  1. Apr 18, 2012 #1
    1. The problem statement, all variables and given/known data

    THe problem is number 3 in the picture.

    2. Relevant equations

    3. The attempt at a solution

    Lens law changing magnetic flux through the loop not sure which way for each one little confused. Thank you

    Attached Files:

  2. jcsd
  3. Apr 18, 2012 #2


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    Homework Helper

    Clearly in situation 4, the field threading the loop is into the page - as signified by the crosses.

    First step would be to establish the direction of the flux threading the loops in the other 4 examples. - ie into the page or out of the page.

    Once you have established the direction of the flux to start with, we can analyse how that flux is changing; and thus the direction of the induced current.

    SO get back with those initial B directions.

    I see the examples as
    1. top left
    2. top right
    3. lower left
    4. lower centre
    5 lower right

    Just so we know we are referring to the same example each time.
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