11. (II) The magnetic field perpendicular to a circular
Chapter 21, Problem 11(choose chapter or problem)
11. (II) The magnetic field perpendicular to a circular wire loop 12.0 cm in diameter is changed from +0.52 T to -0.45 T in 180 ms. where + means the field points away from an observer and - toward the observer, (a) Calculate the induced emf. (b) In what direction does the induced current flow?
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