Induced Current Direction in a Changing Magnetic Field

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SUMMARY

The discussion centers on the direction of induced current in a changing magnetic field, specifically within a loop. When the magnetic flux through the loop increases, the induced current flows clockwise to generate a magnetic field that opposes this change, in accordance with Lenz's Law. The participants debate whether an induced current is necessary when the magnetic field enters and exits the loop, ultimately concluding that the change in flux necessitates an induced current to counteract the increase.

PREREQUISITES
  • Understanding of electromagnetic induction principles
  • Familiarity with Lenz's Law
  • Basic knowledge of magnetic flux concepts
  • Ability to visualize magnetic field lines and their interactions
NEXT STEPS
  • Study Faraday's Law of Electromagnetic Induction
  • Explore practical applications of Lenz's Law in electrical engineering
  • Investigate the behavior of induced currents in various geometries
  • Learn about the effects of changing magnetic fields on conductive materials
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Students of physics, electrical engineers, and anyone interested in the principles of electromagnetism and their applications in technology.

guyvsdcsniper
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Homework Statement
What will be the direction of the induced current for the second image?
Relevant Equations
Lenz's Law
So for the first question it is very straight forward. The magnetic field is going through the loop, increasing the flux through the loop. The induced current must flow clockwise in order to generate a field that goes through the loop in a downward direction to oppose the change.The second question is stumping me. Maybe I am just over thinking it.
There is still a magnetic flux going through the the loop. The field flows from north to south. So the magnetic field enters the loop and exits it as well. So would that mean there is no induced current since over all the magnetic field enters and leaves the loop on its own. There wouldn't need to be an induced current to oppose the magnetic field?

Or does the fact that there is a change in flux mean there has to be an induced current, and since there is a magnetic field incoming and increasing toward the loop, the induced current must be clock wise to oppose the increase in flux.

Screen Shot 2021-11-14 at 1.08.55 PM.png
 
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quittingthecult said:
So would that mean there is no induced current since over all the magnetic field enters and leaves the loop on its own. There wouldn't need to be an induced current to oppose the magnetic field?
I think so too. When we see it from the backside N is our left S is right so we should expect the reverse current if any.
 
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