Checked content


MagnetEZ.jpg(470 × 480 pixels, file size: 184 KB, MIME type: image/jpeg)


English: A "horseshoe" magnet made of Alnico, an alloy of iron, aluminium, nickel, and cobalt. Probably around 1 inch (3 cm) long. It is made in a "horseshoe" shape to bring the North and South poles of the magnet close together, creating a strong magnetic field between them. The metal plate between the poles at bottom is called a "keeper". It is left on the magnet when not in use, to prevent the magnet becoming demagnetized. By creating a closed magnetic circuit, it strengthens the magnetic flux in the magnet, making it harder for mechanical shocks or high temperatures to randomize the magnetic domains of the metal.
Date created 2005
Source the author is owner
Author Eurico Zimbres FGEL/UERJ
( Reusing this file)

Free for all use

w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Brazil license.
Flag of Brazil.svg
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work).
  • share alike – If you alter, transform, or build upon this work, you may distribute the resulting work only under the same or similar license to this one.

The following pages on Schools Wikipedia link to this image (list may be incomplete):

Wikipedia for Schools...

SOS Childrens Villages aims to make Wikipedia suitable for young learners. Thanks to SOS Children, 62,000 children are enjoying a happy childhood, with a healthy, prosperous future ahead of them. Help another child by taking out a sponsorship.