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Permanent magnets can lose their magnetic properties if they are heated Explain why magnetic properties are lost under these conditions?
Wiki User
∙ 14y ago
Ferro magnetic materials that exhibit ferro magnetism loose their properties by converting themselves into diamagnetic substances. The magnetic properties of ferro materials are due to strong magnetic domains inside the material. A domain is nothing but a group of molecules having same magnetic orientation. When heated these molecule due agitation caused by internal energy scatter and the phenomenon of domains no longer exist and hence they act as diamaterials loosing magnetism.
Wiki User
∙ 14y ago
Wiki User
∙ 10y agoThe rotation of the atoms (or electrons) can't stay lined up if it gets too hot.
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Explain the difference between permanent and electromagnetic magnets?
In an electric magnet there is an ordinary metal used which when you run a current through it, induces a magnetic field, the permanent magnet (usually made of lodestone) contains particles which are already arranged in a manner that produces a magnetic field.
You are discussing magnets with another person. That person thinks that breaking a magnet will destroy the magnets magnetic properties. Write a conversation you might have with the other person to exp?
You are discussing magnets with another person. That person thinks that breaking a magnet will destroy the magnets magnetic properties. Write a conversation you might have with the other person to explain why the person's idea is incorrect.
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What models explain the behavior of electromagnetic waves?
Many properties of electronmagnetic waves can be explained by a wave model. However, some properties can be explained by a particle model.
How did ancient philosophers explain the different properties of iron and water?
They think that it was a magnetic property.
What are the gas laws explain briefly?
Gas laws explain how the property of a gas changes in relation to other properties under varying conditions.
Explain the difference between permanent and electromagnetic magnets?
In an electric magnet there is an ordinary metal used which when you run a current through it, induces a magnetic field, the permanent magnet (usually made of lodestone) contains particles which are already arranged in a manner that produces a magnetic field.
How do earth's magnetic properties explain how compass work?
The magnet in the compass is attracted to the magnetic field in the Earth's core. The N on the compass always point to magnetic north.... Don't get that confused with geographical north. They are different. Hope this helps.
Which foam has the best overall properties Explain your answer?
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Explain the term co-energy in magnetic system?
Coenergy is sort of a dual of stored energy that is often used to compute forces on systems with permanent magnets and current-carrying coils.
What materials make up a permanent magnet?
Simple answer. Materials like iron, nickel, cobalt and their alloys can be made to form permanent magnets, in which case the cause of the magnetization is the organization of the atoms in the material so that the atomic magnetic properties become the source of the magnetic field of the permanent magnet. To understand the details of how atoms make magnets takes a longer answer. First, let us establish the terminology. When we use the term permanent magnet, we refer to an object which produces a magnetic field as a result of the material of which it is made. (This distinguishes a permanent magnet from objects that have magnetic effects that are induced by another object or external magnetic field or an electrical current.) Second, identify the atomic origin of the magnetic characteristic. The thing that makes a permanent magnet is to be found in the atoms which compose the magnet and their arrangements. There are some subtle considerations if one wants to explain all of the details of the magnetic properties of a magnet, but the basic answer lies in the atoms and the electrons associated with the atoms of the object. Third, explain what creates the atomic characteristic. Individual atoms contain an important source of magnetism which is the motion of the electric charges associated with the electrons of the atoms. As the electrons move, they are themselves a form of electrical current and if the motion of the electrons results in a net circular motion around the atom, then that creates a magnetic field just as any current flowing creates a magnetic field. But, there is a very important additional motion and that is the spin of the electrons themselves. Each electron carries angular momentum as though it is a spinning top and so we say it has spin. As a charged object, the spin will also be associated with the circular motion of charge around its own axis of spin and this motion of charge also creates its own magnetic field. So, two separate sources of current can exist in an atom and so both can contribute to a magnetic field produced by an atom. (Many atoms and molecules have equal amounts of current flowing in opposite direction and do not produce a net magnetic field, but those which do have such a cancellation of currents may form magnetic materials.) Fourth, forming magnetic materials. Atoms (or atoms linked together as molecules) form material objects. As they are combined, so are the individual atomic properties of the atoms and molecules. These may be combined so the magnetic fields are added together or cancelled out and that depends on the materials involved and processes of making the material. In most common magnetic materials, the arrangement of the the atoms into a solid will also result in changes to the electronic structure of the constituent atoms, so that change in electronic structure can also enhance or even eliminate the contributions of the magnetic properties of the individual atoms. If the atomic arrangement and electronic structure changes are favorable, then the magnetic field that originate at the atomic level can add together to create a magnetic field that we observe in a permanent magnet. Final caveat. This is a qualitative description of the atomic origin of the magnetic property of a material and it is thus incomplete. There are many nuances to the origins of magnetism that can be discovered with further study. A quantitative description would employ electromagnetic theory and quantum mechanics and may even utilize the theory of relativity.
You are discussing magnets with another person. That person thinks that breaking a magnet will destroy the magnets magnetic properties. Write a conversation you might have with the other person to exp?
You are discussing magnets with another person. That person thinks that breaking a magnet will destroy the magnets magnetic properties. Write a conversation you might have with the other person to explain why the person's idea is incorrect.
Explain in brief the properties of magnet?
A magnet has both a South pole and a North pole. The magnetic properties of a magnet come from the alignment of electrons inside of the magnet. The North pole of a magnet will repel another North pole, but attract a South pole, and vice versa.
How does the molecular order structure explain the magnetic properties of oxygen?
Molecular orbital theory predicts that ground state diatomic oxygen has two unpaired electrons (it is a diradical) which occupy its pi orbitals. These unpaired electrons produce a magnetic moment and are responsible for the paramagnetic property of diatomic oxygen.
How do earths magnetic properties explain how a compass works?
lets say if you were to suspend a bar magnet freely it wouldn't just swing around. it would line with the north and south pole that's how a compass works
What are the properties of matter explain each?
tanga
