Magnetic poles and their charges

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SUMMARY

The discussion clarifies the analogy of magnetic poles, where the magnetic south pole is considered negative and the magnetic north pole positive, based on the convention of field lines. Magnetic field lines originate from the north pole and terminate at the south pole, similar to electric field lines that flow from positive to negative. This convention is not indicative of actual charges on the magnetic poles, as magnetic poles themselves do not possess electric charge. The relationship between charged particles and magnetic fields is also discussed, emphasizing that charged particles moving along magnetic field lines do not experience a force from the magnetic field.

PREREQUISITES
  • Understanding of magnetic field lines and their conventions
  • Basic knowledge of electric fields and charges
  • Familiarity with the concept of magnetic poles
  • Awareness of the behavior of charged particles in magnetic fields
NEXT STEPS
  • Research the principles of electromagnetism and magnetic fields
  • Explore the differences between electric and magnetic fields
  • Learn about the Lorentz force and its effects on charged particles
  • Investigate the applications of magnetic fields in technology, such as magnetic resonance imaging (MRI)
USEFUL FOR

Students of physics, educators in electromagnetism, and professionals in fields related to magnetism and electrical engineering will benefit from this discussion.

Fiona Rozario
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What is the reason for the analogy that a magnetic south pole can be considered negative and a magnetic north pole positive? I understand magnetic field lines run from North to South and electric field lines run from positive to negative. Is this the only basis? Or are the magnetic poles actually charged?
 
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The wiki article on magnets discusses the convention:

http://en.wikipedia.org/wiki/Magnet

there is also a picture showing field lines coming from the north and going south so my guess is you are right having established the convention for charge it was applied to magnetic field lines as well.

Also charged particles moving along a magnetic field line feel no force from the magnetic field that could be related to the convention although its true for either direction of motion ie north to south or vice versa...
 

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