0
One method is to strike it repeatedly with a hammer and you could also pass an A.C current through a solenoid quickly to remove the magnetism. By throwing from hight also
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
What is the scientific name of a magnet?
magnet :)
What is a lifting magnet?
A lifting magnet is an electromagnet that is meant to hold or move material that comes in contact with the magnet. This is the opposite of a traction magnet.
What kind of substance attract magnet?
a magnet Actually named magnetite, but it is a natural magnet.
What is the reason that a cold magnet is stronger than a hot or room temperature magnet?
A cold magnet attracts more than a hot magnet. This helps the flow of electricity which therefore helps the electric field, which therefore helps the magnetic field. They use cold magnets to power the LHC which collides hydrogen atoms. Obviously the cold magnet is very attracting.
Is a needle in a compass a permanent magnet?
Yes, it is a permanent magnet.
Where can I find permanent magnets?
Permanent magnets can be purchased from sites such as Magnet Sales and PML India. A permanent magnet is more resistant to factors that would demagnetise it than regular magnets.
When Liquid helium is cut off by a power loss what happens to a MRI magnet?
After liquid helium is cut off, the temperature could rise up and reach temperature. Under these circumstances, the magnet can demagnetise
How do you demagnetise a permanent metal?
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
Can electro magnet magnetize and demagnetize soft iron?
Yes, they can magnetise soft iron. Not sure about demagnetising though. I assume that if more than one or two were placed around the soft magnet, it could demagnetise it.. However, the soft iron would need to be 'hit' so that the poles in the iron can allign with the magnetic fields due to the electro magnet.
How do you demagnetise large quantities of bolts?
With great difficulty.
Does adding electric currents to something that is already magnetized increase or decrease the power of the magnet?
By 'adding electric currents', you are presumably talking about passing a d.c. current through a coil wound around a magnet?First of all, you cannot increase the flux density of a magnet beyond saturation, regardless of the current or number of turns that make up the coil. Whether on not you increase or reduce the flux density depends on the polarity of the coil compared with the polarity of the magnet; if they are opposite then, yes, you can demagnetise the magnet and, in fact, remagnetise it in the opposite direction.
Why dousn't a magnet move to the North Pole?
It is impossible currently to create a magnet with only one pole, or magnetic monopole. This is because a magnet arises from the magnetic directional alignment of the material, so cutting a bar magnet in half will simply cause the two pieces to become their own bar magnets, both pointing the same way as the original.
How you can demagnetize materials?
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.
What does a magnet do to a paperclip?
A paperclip attracts a magnet ,a magnet attracts a paperclip.
What should magnets be kept away from?
Cassette tapes and floppy discs (not CDs) store information by changing the magnetic field on small portions of the tape. Placing a magnet near them for a short time can corrupt or delete the data; this also applies for computer hard-drives and some other storage devices.
Why does a mineral magnet stick to a magnet?
a mineral magnet can stick to a magnet because a mineral magnet has to poles the north and the south poles
Making a magnet with another magnet?
if you have a magnet and a magnetic matereal, rub the magnet from one end of it to the other. do this several times and it will eventualy be a magnet.
