MAGNETS

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Description

MAGNETS

  • Horse Shoe Magnet is a magnet made in the shape of a horseshoe.
  • The magnet has two magnetic poles close together.
  • This shape creates a strong magnetic field between the poles.
  • It is one type of permanent magnet, meaning that it stays magnetized, as opposed to an electromagnet, the magnetic field of which can be started and stopped.
  • Magnetic field of a magnet.
  • The field is greatest where the lines are densest, around the poles (lower)Long U-shaped horseshoe magnets, on a high-power magneto used to power a lighthouse.
  • ┬áThe purpose of a this magnet shape is to place the poles as close together as possible.
  • The total magnetic flux is the same but the field is greater, as it is spread over a smaller volume.
  • A horseshoe is used, rather than a simpler C-shaped magnet, which is also used, because this places the maximum amount of magnetised material into the magnet, for given dimensions around the poles.
  • A particularly large magnet is U-shaped with long parallel sides.

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Size

50 x 12 x 5mm, 75 x 12 x 5mm, 100 x 12 x 5mm, 150 x 12 x 5mm, 200 x 12 x 5mm, 50 x 12 x 10mm, 75 x 12 x 10mm, 100 x 12 x 10mm, 150 x 12 x 10mm, 200 x 12 x 10mm

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