Answer: A small, circular ring is inside a larger loop
Chapter 29, Problem 29.21(choose chapter or problem)
A small, circular ring is inside a larger loop that is connected to a battery and a switch (Fig. E29.21). Use Lenzs law to find the direction of the current induced in the small ring (a) just after switch S is closed; (b) after S has been closed a long time; (c) just after S has been reopened after it was closed for a long time.
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