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Magnetism

Magnetism

Magnetism

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Book Details:

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Year:2015
Publisher:CK-12
Pages:20 pages
Language:english
Since:07/10/2015
Size:3.09 MB
License:CC-BY-NC

Content:

Magnets are common items in our daily lives. Playing around with some magnets, we can see some basic features:

  • Magnets exert force on each other, as well as on certain metals.
  • This force is strongest when they are touching, but also acts at a distance.
  • Magnets can either attract or repel each other, depending on how they are held.

A bit of playing around with real magnets will show that there are two faces to the magnet. Held one way, two magnets attract each other, but if you flip one of them around, the magnets then repel each other. We call the two ends of the magnet the magnetic poles. Each magnet has a north pole and a south pole. Similar to electric charges, like poles repel and opposite poles attract.

With this manual, the student will:

  • Know how to determine the direction of a permanent magnetic field.
  • Know that a current-carrying wire creates a magnetic field.
  • Know how to determine the direction of the magnetic field produced by a current-carrying wire.

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