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Earth's magnetic field HTML5

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Summary

The Earth is a magnetized planet. The Earth's magnetic field is like that produced by a large bar magnet. The south magnetic pole coincides with the north geographic pole.

Note how a compass remains tangential to the field lines at every point.

Move your mouse around the screen. 

Learning goals

  • To view the geometry of the Earth's magnetic field.
  • To show that the compass remains parallel to the field lines at every point.
  • To distinguish geographic poles and magnetic poles.

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