Induced Magnetic Field: Ferromagnetic Moment & Detection

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SUMMARY

A ferromagnetic body moving through an external constant magnetic field does indeed obtain an induced magnetic moment, primarily due to the alignment of magnetic moments with the external field. When the ferromagnetic body is also a conductor, Faraday's law of electromagnetic induction applies, resulting in induced electromotive force (EMF) and significant eddy currents that generate additional magnetic fields. The detection of this induced magnetic field is feasible, especially when considering the effects of acceleration and the medium surrounding the body.

PREREQUISITES
  • Understanding of Faraday's Law of Electromagnetic Induction
  • Knowledge of ferromagnetic materials and their magnetic properties
  • Familiarity with eddy currents and their effects in conductors
  • Basic principles of magnetic field detection techniques
NEXT STEPS
  • Study the mathematical formulation of Faraday's Law in detail
  • Explore the behavior of eddy currents in various conductive materials
  • Research methods for detecting induced magnetic fields, such as Hall effect sensors
  • Investigate the impact of different mediums on the motion of ferromagnetic bodies
USEFUL FOR

Physicists, electrical engineers, and materials scientists interested in electromagnetic theory, magnetic field detection, and the behavior of ferromagnetic materials in dynamic environments.

Yoni
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Does a ferromagnetic body moving through an external constant magnetic field obtain an induced magnetic moment?
If so, can this induced field be detected?
Which equation describes it?

Thanks!
 
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I think this question is quite complex. If the ferromagnetic body is also a conductor, there will be an EMF that arises basically from Faraday's law. This can create significant eddy currents, which can generate magnetic fields. In addition, the magnetic field can cause magnetic moments to align with the magnetic field in very much the same way that it happens in the static case. This may not be a complete answer, but hopefully it is helpful.
 
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Yoni said:
Does a ferromagnetic body moving through an external constant magnetic field obtain an induced magnetic moment?
If so, can this induced field be detected?
Which equation describes it?

Thanks!

Of yet, I failed to find a satisfying answer to basic question. Does the body need to accelerate to produce induce currents on its envelope?
If the body is moving inside a non-conducting medium, does this change anything?
Thank you for your help.
 

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