Electrifying a permanent magnet

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SUMMARY

Passing a high current through a conductive permanent magnet alters its magnetic field due to the interaction between the electric current and the magnetic domains. The direction of the current influences the orientation of the magnetic field produced. This process can disrupt the existing magnetization, potentially leading to a change or loss of the magnet's magnetic properties. Understanding this phenomenon is crucial for applications involving electromagnetism and magnetic materials.

PREREQUISITES
  • Basic understanding of electromagnetism
  • Familiarity with magnetic domains
  • Knowledge of electric current and its effects on materials
  • Concept of permanent magnets and their properties
NEXT STEPS
  • Research the effects of electric current on magnetic domains in conductive materials
  • Explore the principles of electromagnetism and its applications
  • Learn about the process of magnetization and demagnetization in permanent magnets
  • Investigate the relationship between current direction and magnetic field orientation
USEFUL FOR

Students of physics, electrical engineers, materials scientists, and anyone interested in the principles of electromagnetism and magnetic materials.

fadecomic
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What happens, and why? (This isn't homework, just curiosity.)

To be more precise, what would happen to the magnetic field of the magnet if we passed a current through it (assuming it is conductive). Will the current disrupt the magnetic domains? Will the magnetization disappear?
 
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fadecomic said:
What happens, and why? (This isn't homework, just curiosity.)

To be more precise, what would happen to the magnetic field of the magnet if we passed a current through it (assuming it is conductive). Will the current disrupt the magnetic domains? Will the magnetization disappear?


It may surprise you to know that one way to produce a permenant magnet is to pass high current through a conductive metal. The direction of the current will determine the direction of the field.

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