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How is the arrangement of domains different in a magnetised and a non magnetised piece of iorn?
In an unmagnetised piece of iron, these magnetic domains are arranged randomly and point in lots of different directions - they cancel each other out. In a magnetised piece of iron, all these domains point in the same direction. This makes one end of the magnet act as a north pole and the other end act as a south pole. The better the domains are aligned, the stronger the magnet. Bye bye!
Why are some objects magnetic and others are not?
It all depends on the way in which the iron's 'domains' are aligned. Iron is inherently magnetic as a material, but can become demagnetized as time goes on, due to sudden impact or when affected by another magnetic source. For iron to become magnetized 'domains' need to be in parallel with each other so the magnetic field created all flows in the same direction. An unmagnetized iron source has all of its domains misaligned A brief explanation of domains are a series of positive and negative charged atomic particles within the iron itself which behaves much like tiny magnets themselves.
How does an iron nail become a magnet when it is placed in a strong magnetic field?
Domain theory suggests that small pockets of atoms (domains) in the nail are initially randomly and chaotically aligned (making it non-magnetic). But in a strong magnetic field the domains are forced to align, if the field is strong enough they will stay like that for some time. There are differing theories about why the domains make it magnetic I think the accepted one is that the electrons in each atom of iron in a domain are spinning the same way, and when all the electrons in the nail are spinning the same way it makes the whole thing magnetic.
How are magnetic domains arranged differently in a magnetized material and in a material that is not magnetized?
The magnetic domains of an unmagnetized material will be pointing in random directions, which is why it is appearing to me unmagnetized. In a magnetized material, they move from north to south.
What is a substance in which the domains are all alingned in the same direction?
A permanent magnet has most of its domains arranged it the same direction.
What happens to the domains in a piece of iron when it becomes magnetised?
The iron automatically divides into domains separately. It does not exist in a state when magnetization occurs in the same direction, in the entire material. This is to minimize its internal energy.
How is the arrangement of domains different in a magnetised and a non magnetised piece of iorn?
In an unmagnetised piece of iron, these magnetic domains are arranged randomly and point in lots of different directions - they cancel each other out. In a magnetised piece of iron, all these domains point in the same direction. This makes one end of the magnet act as a north pole and the other end act as a south pole. The better the domains are aligned, the stronger the magnet. Bye bye!
Why aren't all iron materials permanent magnets?
When a magnet or iron piece is watched under a powerful microscope we will obseve that a magnet or iron is made up tiny tiny pieces which cannot be further divided realistically such small pieces are known as domains. In a magnet all domains are in the same direction due to which it attracts iron. While in a iron these domains are arranged randomly which nullify its magnetism. When a magnet is brousht near an iron matrial all the domains get attracted to the magnet due to which domains in iron get arranged in a particular direction due to wich at that time they act as magnets but as soon as the magnet gets farther the domains again arrange them selves randomly due to which tey do not remain permanent magnets
What happens to a magnetic domains of a piece of iron when it is placed in a magnetic field?
They all end up going in different directions so that it is magnetic anymore.
Why are some objects magnetic and others are not?
It all depends on the way in which the iron's 'domains' are aligned. Iron is inherently magnetic as a material, but can become demagnetized as time goes on, due to sudden impact or when affected by another magnetic source. For iron to become magnetized 'domains' need to be in parallel with each other so the magnetic field created all flows in the same direction. An unmagnetized iron source has all of its domains misaligned A brief explanation of domains are a series of positive and negative charged atomic particles within the iron itself which behaves much like tiny magnets themselves.
Why do electromagnets make iron magnetic?
The electromagnet causes many randomly oriented magnetic areas in the piece of iron to all align in the same orientation. In some cases adjacent magnetic areas not only align in the same orientation, but they merge into common large areas making it harder for the areas to randomize again.
Why do some mierals attract magnets?
Those are the minerals, such as iron, which have small magnetic regions (actually called magnetic domains, if I remember correctly) within them - that is, groups of atoms, each of them a tiny magnet, that have a tendency to align, all in the same direction.
How does an iron nail become a magnet when it is placed in a strong magnetic field?
Domain theory suggests that small pockets of atoms (domains) in the nail are initially randomly and chaotically aligned (making it non-magnetic). But in a strong magnetic field the domains are forced to align, if the field is strong enough they will stay like that for some time. There are differing theories about why the domains make it magnetic I think the accepted one is that the electrons in each atom of iron in a domain are spinning the same way, and when all the electrons in the nail are spinning the same way it makes the whole thing magnetic.
Why does hard iron retain magnetism?
Coercivity is the property describing the ability of magnetic material to retain magnetism. Compared to soft iron, hard iron has larger magnetic domains, regions of the crystal where atomic magnetic fields have similar orientation. Materials with fewer, bigger domains within a given volume have higher coercivity than materials with many small domains. Hard iron can still lose its magnetism, as all permanent magnets can be demagnitized if strong enough fields are involved. Soft iron loses magnetism simply by removing it from a magnetic field. Some "rare earth" metal alloys can retain magnetism much better than hard iron, since they can have much larger domains.
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.
Does magnetization affect the mass of the substance magnetized?
Magnetization does not affect the mass of the material being magnetized. All the magnetizing field does is align the magnetic domains of the material being magnetized. No matter or mass is added, or "created out of energy" or the like. Nothing changes except the orientation of magnetic domains within the material being magnetized.
Why do some elements attract electrons?
In a ferrous metal, iron, if the molecules align then magnetism is formed. To show this, if you take a nail that is not magnetic and then hammer it, the molecules start to line up and it becomes magnetized.
