Is there such thing as magnetic interference?

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SUMMARY

The discussion centers on the concept of magnetic interference, specifically how the presence of nearby materials, such as metals or other magnets, can influence the magnetic field of a magnet. It is established that when a magnet is placed near a material, the previously random dipole moments of electrons within that material can become partially ordered, thereby contributing to the overall magnetic field. This phenomenon is closely related to electromagnetic induction, which is distinct from interference. For further understanding, the concept of magnetic susceptibility is highlighted as a foundational topic.

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Guest432
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Say I place a magnet on a table, and I have a metal in close proximity. Will its magnetic field change due to the presence of this metal, however minute?

What if I had another magnet or the table itself is made of materials the magnet is slightly attracted to? Does this phenomenon even exist?
 
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Sure, if you put a magnet close to a material the before randomly oriented dipole moments of the electrons inside the material are (partially) ordered, which provides additional contributions to the magnetic field imposed. That's quite analogous to the electric field where the electric dipole moments are also ordered (and/or, if you have a conductor the charge distribution of the medium changes due to the electric force imposed by the imposed electric field).
 
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vanhees71 said:
Sure, if you put a magnet close to a material the before randomly oriented dipole moments of the electrons inside the material are (partially) ordered, which provides additional contributions to the magnetic field imposed. That's quite analogous to the electric field where the electric dipole moments are also ordered (and/or, if you have a conductor the charge distribution of the medium changes due to the electric force imposed by the imposed electric field).
Thanks! My limited googling just yielded electromagnetic interference. Do you have any more information about playing magnetic interference?
 

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