Understanding Magnetic Fields: Compass Direction in a Bar Magnet

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SUMMARY

A compass placed inside a bar magnet will point towards the north pole of the magnet, as the compass needle aligns with the magnetic field lines that run from the south to the north pole. This behavior is due to the compass needle's north end being attracted to the magnetic south pole of the bar magnet. Historically, the north pole of a magnet was defined by its attraction to the Earth's geographic north, which is actually a magnetic south pole. This understanding clarifies the relationship between compass direction and magnetic fields.

PREREQUISITES
  • Understanding of magnetic field lines
  • Knowledge of compass functionality
  • Familiarity with bar magnet properties
  • Basic principles of magnetism
NEXT STEPS
  • Research the properties of magnetic fields using tools like MATLAB or Python libraries for simulation
  • Explore the concept of magnetic poles and their historical definitions
  • Learn about the Earth's magnetic field and its implications for navigation
  • Investigate the behavior of compasses in varying magnetic environments
USEFUL FOR

Students studying physics, educators teaching magnetism concepts, and anyone interested in the principles of navigation and magnetic fields.

rh23
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Homework Statement



If a compass was placed inside a bar magnet which way would north point.

Homework Equations





The Attempt at a Solution


It seems when you put a compass around a bar magnet it points in the direction of the tangent to the magnetic field line at that location. Inside a bar magnet the magnetic field lines run from south to north so i believe the compass "N" will point to the north pole of the bar magnet
 
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rh23 said:

Homework Statement



If a compass was placed inside a bar magnet which way would north point.

Homework Equations





The Attempt at a Solution


It seems when you put a compass around a bar magnet it points in the direction of the tangent to the magnetic field line at that location. Inside a bar magnet the magnetic field lines run from south to north so i believe the compass "N" will point to the north pole of the bar magnet

Historically, a magnet's north pole was taken to be the end of the magnet that is attracted to the direction of the north geographic pole. Of course today we understand that this makes the Earth's north actually a south magnetic pole!
 
Not sure if that was suppose to help?
 

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