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Homework Help: EMF-mag and EMF-dir

  1. Aug 11, 2010 #1
    1. The problem statement, all variables and given/known data
    A magnetic field B, directed along the z-axis, varies with time T as shown in the figure. A planar conducting loop is in the magnetic field. The magnetic field is perpendicular to the plane of the loop.

    [URL]https://s1.lite.msu.edu/adm/randomlabel.png?token=1281532990_24789_3[/URL]

    Select the appropriate description for the magnitude of the EMF induced in the loop (EMF-mag) and for its direction (EMF-dir) at the indicated times. Select a response for each statement.

    The EMF-mag at J is ?????? that at L.
    The EMF-mag at H is ????? that at G.
    The EMF-mag at J is ????? that at C.
    The EMF-mag at D is equal to zero. (true or false)
    The EMF-dir at G is opposite to that at C. (true or false)
    The EMF-mag at C is ???? that at G.
    The EMF-dir at H is opposite to that at G (true or false)

    2. Relevant equations
    Not really an equation but I remember this being directly related to the slope/derivative of the lines, but I am getting the answer wrong. I am unsure of how to find the direction


    3. The attempt at a solution


    greater than
    greater than
    greater than
    false
    false
    equal to
    true
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
    Last edited by a moderator: Apr 25, 2017
  2. jcsd
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