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Rub it with a magnet if it is metallic.
Heat it to high temperature and this will randomize the orientations of the individual magnetic moments of the atoms. To what high temperature and how? There are various ways to demagnetise a metal. The above method is one way Here are some others: - Drop the magnet over and over again (if you're not afraid of it shattering. Only do this if you know the metal you're dropping is not brittle) - Get another magnet that is stronger than your's and stroke your magnet in one way with it for a period of time. And then change the direction of stroking. See related link below
A magnet has magnetic properties because the dipoles of the atoms are lined up in a single direction. To demagnetize it, you must scramble the dipoles out of alignment. First, heat the magnet past the Curie point (the temperature at which it loses its magnetic properties until cooled). Strike it on the ends of the magnet with a hammer. When cooled, it will no longer be magnetized.
Increase the size of the magnet. Increase the current passing through the wires (electromagnets) Increase the number of coils of the wire (electromagnets)
What I learned was that there is and might be only 2 ways and that is to increase the current (add more batteries) or add more coils..
the core is basically a magnet, right?
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By keeping them in magnet keepers
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Earth is like magnet by the iron in the earth's crust
The same way you destroy anything else. melt it in a furnace is the only way because if you chop it one end will be south and the other will be north If you mean "How do you remove the magnetism from a permanent magnet?" There are several ways. You can heat it past its Curie Point. For iron that is about 800C. Stroking one magnet with another in a random fashion will sometimes work. Hammering it will usually work.
Rub it with a magnet if it is metallic.
a bar magnet and a electromagnet are alike in many ways. the are alike because both of them are magnets. but there are plenty other ways they are alike
Electromagnet. it is a piece of metal (usually iron) that is wrapped in copper wire. it is turned on by putting electricity through the copper wire. it then producces a magnetic field when electricity is run through it.
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Heat it to high temperature and this will randomize the orientations of the individual magnetic moments of the atoms. To what high temperature and how? There are various ways to demagnetise a metal. The above method is one way Here are some others: - Drop the magnet over and over again (if you're not afraid of it shattering. Only do this if you know the metal you're dropping is not brittle) - Get another magnet that is stronger than your's and stroke your magnet in one way with it for a period of time. And then change the direction of stroking. See related link below