Multiple-Concept Example 13 reviews the concepts used in
Chapter 22, Problem 22.113(choose chapter or problem)
Multiple-Concept Example 13 reviews the concepts used in this problem. A long solenoid (cross-sectional area 1.0 106 m2 , number of turns per unit length 2400 turns/m) is bent into a circular shape so it looks like a donut. This wire-wound donut is called a toroid. Assume that the diameter of the solenoid is small compared to the radius of the toroid, which is 0.050 m. Find the emf induced in the toroid when the current decreases to 1.1 A from 2.5 A in a time of 0.15 s.
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