How can we demagnetize a magnet (Long Answers)
Answers
Answer:
Demagnetize a Magnet by Heating or Hammering
The temperature required to achieve the effect is a physical property of the particular material. You can get the same effect by repeatedly hammering a magnet, applying pressure, or dropping it on a hard surface.
Explanation:
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When the magnetic poles of a metallic object are aligned in the same direction, magnetism is produced. We say that demagnetization occurs when there is a change or some kind of disorder in the magnetic poles. That can happen for several reasons, now we tell you about them, just as we tell you about the existence of tools that allow us to magnetize or demagnetize in a matter of seconds.
Materials are demagnetized when the magnetic molecules inside a substance are randomly assigned, causing disorder inside the previously aligned magnetic material.
Among the many ways we can see to demagnetize a magnet we propose the following because they are the most common.
You can heat a magnet to the Curie point. The process can be done with two copper wires that you have connected to a generator or a battery. You can also help yourself with a torch. At the Curie point the temperature reached causes the ferromagnetic properties to be lost until it cools down again. The energy we have applied to the magnetic poles will make the magnet point in different directions, so the poles will be deformed.
It is also possible to demagnetize a magnet by hitting the ends of the magnet with a hammer, which will alter the order of the magnet. To hit a magnet with an object in general, applying force, is a good mechanism to achieve this objective.
In the same way you can also use an alternating current field to alter the order of the magnetic poles. You can do this by connecting the magnet to an alternating current circuit by inserting it into a solenoid: a loop of coiled copper wire surrounding a metal core and connected to an electric current.