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Problem 29.5: Find emf in loop in changing magnetic field

Please wait for the animation to completely load.

The animation shows the cross section of a wire loop in a changing magnetic field (the wire loops out of and into the screen). The graph shows the magnetic field in the x direction as a function of time (position is given in centimeters, time is given in milliseconds, 10-3 s, and magnetic field strength is given in tenths of tesla, 10-1 T). Restart .

  1. Sketch a graph of the induced emf in the loop as a function of time.
  2. What is the maximum value of the emf?
  3. What is the direction of the current in the loop as a function of time (use the convention that current flowing out of the top of the loop is positive)?

Problem authored by Anne J. Cox.

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