Problem 29.10: Find the field in a generator

Please wait for the animation to completely load.

The graph on the right shows the induced emf through the loop as a function of time (position is given in centimeters, time is given in seconds, and emf is given in millivolts). The green arrow shows the direction and magnitude of the induced current. Restart.

  1. What is the magnitude of the magnetic field?
  2. Looking down on this loop from above, in what direction is it rotating (clockwise or counterclockwise)? Explain your answer.

Problem authored by Melissa Dancy and Anne J. Cox.
Script authored by Wolfgang Christian, Anne J. Cox, and Melissa Dancy.

Physlets were developed at Davidson College and converted from Java to JavaScript using the SwingJS system developed at St. Olaf College.

OSP Projects:
Open Source Physics - EJS Modeling
Physlet Physics
Physlet Quantum Physics
STP Book