0
A magnet is an object that has a magnetic field. The word magnet comes from the Greek "magnÃtis lÃthos" (μαγνήτης λίθος), which means "magnesian stone". Magnesia is an area in Greece (Now Manisa, Turkey ) where deposits of magnetite have been discovered since antiquity. Permanent magnets can be demagnetized in the following ways: ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ * Heat. Heating a magnet past its Curie point will destroy the long range ordering. * Contact. Stroking one magnet with another in random fashion will demagnetize the magnet being stroked, in some cases; some materials have a very high coercive field and cannot be demagnetized with other permanent magnets. * Hammering and/or Jarring. Such activity will destroy the long range ordering within the magnet. * Being placed in a solenoid which has an alternating current being passed through it. The alternating current will disrupt the long range ordering, in much the same way that direct current can cause ordering. In an electromagnet, ceasing the flow of current will eliminate the magnetic field. However, a slight field may remain in the core material as a result of hysteresis.
Wiki User
∙ 15y ago
Wiki User
∙ 9y agoTo magnetize metal, it must be rubbed with a magnet. Iron that is rubbed with a magnetic deviceÊ will become magnetic again. Steel can also become magnetic this way.
Add your answer:
Earn +20 pts
Can you demagnetize a magnet with a magnet?
no you can't
What are the ways of demagnetize the magnet?
By keeping them in magnet keepers
Which of the following can be done to demagnetize a permanent magnet?
heating the magnet past the Curie point
What is the thing that weakens a magnet?
Magnets are "demagnetized" by extreme heat. If you boil a magnet in water, the heat will demagnetize the magnet.
Will exposing a magnet to a DC magnetic field demagnetize it?
Obviously no.
How do you demagnetize a gold plated chain?
Let it sit on a magnet overnite
How do you demagnatise a magnet?
You can demagnetize a magnet by: -dropping it many times -heating it over a flame -hammering it many times
How do you stop a magnet from working?
You can't. You might be able to demagnetize it, but then it's no longer a magnet, it's just a piece of metal.
What happens to a magnet force when a bar magnet is cracked through the middle?
If a bar magnet is broken in half, each half is a magnet with its own north and south pole. The force used to break the magnet will also tend to partially demagnetize the magnet, although that might be a minor effect.
How do you magnetize and demagnetize a magnet?
By placing Iron in a strong magnetic field, the field will turn the iron into a magnet. If you melt the iron and then allow it to resolidify, it will drop the magnetic charge (and you can charge it again if you wish).
How do you demagnetize a nail?
You can bash it on a table to bash the magnetic domains around and they mix around so they can't stick to another magnet. Test it out
Can a magnet not be magnetic?
if it truly is a magnet, than no. however, you can demagnetize a magnet by dropping it or hitting it really hard to rearrange the domains within the magnet. Domains are the regions within a magnet that have particles that are either arranged so that the poles are attracted to each other or randomly arranged so that the particles are not magnetized at all. so if it is a magnet... it probably will be magnetic unless you take your anger out on it or something.
