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What is the definition of a magnet?
A permanent magnet is a magnet that has been manufactured to "permanently" hold its magnetic field. Ferromagnetic material of a desired shape is heated above its Curie point, exposed to a large electromagnetic field, and cooled slowly while being held in that field. This allows the magnetic domains in the material to align themselves with the field of the electromagnet. Further, when the material cools below its Curie point, the magnetic domains will remain in the position they are in when the electromagnet is shut off. The magnet is now a permanent magnet; the magnet "holds" the magnetic field "imprinted" on it.
Can you charge steel with a magnet and can the steel have a temporary magnetic field?
If we take a steel nail and tap it with a magnet in the same way a bunch of times, the magnet will align some of the magnetic domains in the nail. The nail will then have become a permanent magnet. The magnetic strength of the nail will not be great like the magnet that created it, but it will be present and will be permanent. The nail could then be used to pick up iron filings just as the magnet could be used to do that.
How does magnetic material become a magnet?
Placing the material in a strong magnetic field will align its' domains. You can swipe a metal tool on a magnet and make it a magnet.
Is the magnetic field the area around the magnet where the force acts?
Magnetic domains are microscopic areas of a solid where the atoms all have their magnetic moments aligned. If these domains are randomly aligned then a ferromagnetic material like iron or nickel will not have any permanent magnetism. If these domains start to align with each other the bulk material will show permanent magnetism. The area around a magnet where the force acts is the magnetic field.
Why is magnet unable to stick to a stainless steel refrigerator?
If a magnet doesn't stick to a material, that means that the material is non-magnetic. Every individual atom is a magnet, but in a magnetic material, there are groups of atoms (called "magnetic domains") that have their magnetic directions aligned. An outside magnetic field in such materials will align some of the magnetic domains in the direction of the magnetic field.
When will a permanent magnet lose magnetism?
a permanent magnet has its domains arranged in one direction at all times and is thus able to exercise magnetic properties at all times, but it loses its magnetism if it is heated to a certain extentsecond way is to hammer it constantly. this disrupts the alignment of the domains (i.e. they are originally aligned in the same direction) and causes them to align in different directions thus destroying the magnetic behavior of the magnetic.If their microcrystalline structure or chemical composition change, they tend to no longer be magnetic.
Do magnetic domains of iron naturally align with earth's axis?
Magnetic domains have the tendency to align with magnetic fields. The Earth's magnetic field is relatively weak, but I would expect SOME alignment.
Does a magnet have moving electrons in it?
Any permanent magnet has electrons moving in it in some uniform way. All permanent magnets have a "uniform net movement" of electrons. Let's look just a bit more closely. Electrons move around atomic nuclei, but if we get the right material and "align" or "coordinate" the movement of the electrons around atoms, magnetic domains will be set up. These will "link" and a permanent magnet will result.
What does an object need to be attracted to a magnet?
It needs to be made of a magnetic material, such as iron.Such materials are magnetic because they form magnetic domains, in which atoms align with one another (with respect to their axis of rotation).
How are The magnetic domains in non-magnetized materials different from the magnetic domains in magnetized materials?
In non magnetized material the domains are not ordered -they do not align with one another.
Why do magnets attract to iron but not paper?
Iron has magnetic domains, that tend to align when the iron is in a magnetic field. Many other materials don't have such magnetic domains.
Why are magnets bipolar?
Magnets have two poles, a north pole and a south pole, because of the alignment of their electrons. The electrons in a magnet tend to align in the same direction, creating a magnetic field that has distinct north and south poles. This property is due to the presence of magnetic domains within the material, which align and create a bipolar magnet.
