Investigating Induced Current in Circular Coils

AI Thread Summary
When the switch in the larger coil is closed, it generates a changing magnetic field that induces current in the smaller coil. According to Lenz's Law, the induced current will flow in a direction that opposes the change in magnetic flux, which means it will flow counterclockwise if the larger coil's current flows clockwise. The induced current will only flow for a short duration, as it ceases once the magnetic field stabilizes after the switch is closed. Understanding this principle is crucial for analyzing electromagnetic induction in circular coils. The discussion emphasizes the importance of Lenz's Law in predicting the behavior of induced currents.
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If I have a top view of two circular coils of conducting wire lying on a flat surface, what is the direciton of induced current that appears in the smaller coil when the switch in the larger coil is closed?

I'm trying to figure out:
1.) which direction the induced current would flow through the smaller coil
2.) how long it would flow: forever, or only for a short time.

I've attached a picture of the wires for clarification.

I'm not sure how to solve this. I know that induced current in a loop occurs only when the magnetic field through that loop changes. I'm assuming that when the switch is closed a current will run counterclockwise around the larger loop, but I don't know if this is a valid assumption, or what that does for the smaller loop. Can soemone help please?

Thank you.
 

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Can't see the diagram now, but the idea is basically to use Lenz's Law, that the direction of the induced current in the smaller loop will flow in the direction that would create an induced magnetic field which opposes the change in magnetic flux linkage through it i.e. in the likes of N against N and S against S in a simplistic analysis in this case.
 
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