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How to demagnetize a magnet?

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A magnet is an object that has a magnetic field. The word magnet comes from the Greek "magnítis líthos" (μαγνήτης λίθος), which means "magnesian stone". Magnesia is an area in Greece (Now Manisa, Turkey ) where deposits of magnetite have been discovered since antiquity. How to demagnetize materials 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.
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What can demagnetize a magnet?

Drop it on the floor a few times. . Hit it with a hammer a few times. . Heat it red hot in the stove flame. . Wrap several turns of wire around it and run a high AC current

How can a magnet be demagnetized?

Repeated striking, heating, or using AC current will demagnetize a magnet. A small magnetic field may remain. It can be demagnetised by: -dropping it many times -hammering it

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

How do you demagnetize a magnetic object?

The good way is to borrow or construct a coil of wire large enough to allow the magnetic object to pass through. Energise the coil with standard house current - 50 Hz or 60 Hz

What could you do to demagnetize a permanent magnet?

-- Stick it in a gas flame and heat it to glowing. -- Drop it on the floor or hit it with a hammer a few times. -- Stick it into a DC-current-carrying coil of wire for a w

How you can completely demagnetize a magnet?

In a magnet, the alignment of the magnetic fields produced by the magnetic atoms (iron, cobalt, etc) in the magnet is what gives it its magnetic properties. Anything that can