Electromagnetic Induction (Long straight wire above circulua

AI Thread Summary
A circular loop of wire placed next to a long straight wire experiences induced current due to an increasing current in the wire. The induced current flows in a clockwise direction, as determined by Lenz's Law, which states that the induced EMF opposes changes in the magnetic field. The right-hand rule helps visualize that the magnetic field around the straight wire is clockwise, leading to counterclockwise opposing magnetic field lines around the loop. This results in the induced current being clockwise in the circular loop. The explanation clarifies the relationship between the changing current, magnetic fields, and induced current direction.
mikemartinlfs
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Homework Statement


A circular loop of wire is placed next to a long straight wire. The current I in the long straight wire is increasing. What direction is the current that's induced in the circular loop?

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Homework Equations


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The Attempt at a Solution


I'm aware that the answer is clockwise; however, I'm trying to conceptualize exactly how. I'm quite familiar with induction using Faraday's Law when it comes to magnetic fields. I know that the current will create a magnetic field; however, my brain must not be working today as I'm not able to combine these concepts at the moment. Can someone please break this relatively simply question down for me in a way that helps me to grasp the concept?

Thanks!
 

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Disregard; I think I answered my own question; Lenz's Law states that the induced EMF (and thus, current) would act in such a way to counter the motion of the current in the wire. Based on the right-hand rule, the magnetic field lines around the straight wire would be clockwise, meaning the opposing magnetic field lines around the loop would be counterclockwise. With the right-hand rule, this shows that the induced EMF's direction would be clockwise around the loop (and thus, making the current counterclockwise).

(I was going to delete but I don't see an option to do so).
 
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