How does emf change with the magnetic field
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How does emf change with the magnetic field

[From: ] [author: ] [Date: 11-10-30] [Hit: ]
C, D, E, and F. How would you rank them by magnitude of the induced emf? Any help on this one would really be appreciated.......
A wire loop is placed in a magnetic field that is perpendicular to its plane. The field varies with time as shown in the figure:

http://session.masteringphysics.com/prob…

There are six regions in the figure: A, B, C, D, E, and F. How would you rank them by magnitude of the induced emf? Any help on this one would really be appreciated.

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V = N D/dt
In region A the slope is positive the induced voltage is positive
In B the slope is positive and greater than in A so B's voltage is positive and greater than A's
C has a negative slope so the voltage is negative, its magnitude |C| is greater than B
D and F are 0 since the slope is 0
E has the greatest positive slope so E is greater than B,
In turns of absolute voltage
E>B>A> D=F > C
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