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Heat allows the atoms in a magnet to become less organized, causing the individual magnetic fields of the atoms to cancel each other out, dissipating the effect.
An electromagnet is simply a wire coil energized by an electric current, which aligns its atoms (polarize them) as electrons flow through it, creating a temporary magnetic field.
Answer
The most effective way of demagnetising a magnet is to insert it into a coil, pass an a.c. current through the coil and gradually reduce that current to zero.
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Will a magnet still be a magnet if it is melted?
A magnet is produced by aligning the magnetic domains in a material to point in the same direction. When heated, the magnet loses its magnetism as the molecular motion, which is caused by heating, destroys the alignment of the magnetic domains. Ferromagnetic materials also lose its magnetism after being melted. However, when the magnet is being hammered whilst cooling in a magnetic field, the melted magnet would gain its magnetism again.
What is formed when you spin electrons in a magnet?
It doesn't work like that. You can't make an electron have spin, remove its spin, or change the amount of its spin.What happens in a permanent magnet is that more electrons have their spin axis in one direction than in the opposite direction. Since the spin is associated with a magnetic field, that results in magnetism that can be observed externally.
How do you make iron permanent magnet?
we want to make a permanant magnet from an ordinary iron
What are three ways to destroy the magnetism of a magnet?
I suggest that you incinerate it.
How can dropping a magnet destroy its magnetism?
There are molecules in a magnet that allow it to stick to other things. It has something to do with positive and negative charges or atoms in an atom cloud, but none of that is important unless you are a scientist. But dropping a magnet could scrape off those important molecules causing it to have less magnetism. It's not that big a difference, but should still be avoided.A.A permanent magnet works because the individual magnetic fields of the molecules in the material are mostly aligned. It is the net effect of this magnetic alignment that we experience. Dropping a permanent magnet onto a hard surface sends vibrations rippling through the material, thus causing some of the molecules to change position and out of magnetic alignment. A magnet may have to be dropped or hit repeatedly to become completely demagnetized.
Does putting a magnet in the water for 60 minutes make the magnet lose its magnetism?
No it wont but if the water is hot then it will lose its magnetism
Why do magnets make a N and S pole when you break a magnet?
Because in a permanent magnet, there is always a magnetic field, if the permanent magnet is broken, and didn't have a S and a N, then magnetism would cease to exsist.
Why droping a magnet is bad?
If you drop a magnet, you can potentially make it lose some of its magnetism. Striking it with a hammer, exposing it to electric charges, and extreme temperature changes (rapid temperature change from freezing to boiling for example) can affect its magnetism.
Will a magnet still be a magnet if it is melted?
A magnet is produced by aligning the magnetic domains in a material to point in the same direction. When heated, the magnet loses its magnetism as the molecular motion, which is caused by heating, destroys the alignment of the magnetic domains. Ferromagnetic materials also lose its magnetism after being melted. However, when the magnet is being hammered whilst cooling in a magnetic field, the melted magnet would gain its magnetism again.
Of a ferromagnet an electromagnet a temporary magnet or a permanent magnet which is easy to create but loses its magnetism easily?
The temporary magnet becomes a magnet in a strong magnetic field, but its magnetic properties will disappear when that field is taken away. The ferromagnet and the permanent magnet are essentially the same thing. The electromagnet isn't that easy to make compared to the temporary magnet. Let's conduct an esperiment. If we take a bar magnet and pick up a paperclip with it, we can use the paperclip on the end of the magnet to pick up another paperclip. The second paperclip we are picking up only needs to touch the first paperclip; it does not have to touch the magnet itself. When the magnet is taken away, the paperclips no longer exhibit magnetic properties. They were acting as temporary magnets, and the simple and easy removal of the magnet cause them to lose their magnetism.
Why should you never drop a magnet on the floor?
It will lose its magnetic field. The vibrations made from the drop charge the electrons and make them move out of the line that they were in, this causes the magnet to lose its magnetism.
What make magnet lose its magnetism if it is?
Magnets can lose their magnetic properties if exposed to high heat or are made subject to high impact. The temperature at which magnets lose magnetic properties is referred to as the Curie Temperature for ferromagnetic materials.
How do you get magnetism?
You can get magnetism by connecting 2 ends of a wire to a battery. make sure the wire is long enough. the more coil you have the stronger the magnet will be. This is just one way to make magnetism.
What can you use instead of a rare earth magnet?
Rare-earth magnets are the strongest type of permanent magnets made, producing significantly stronger magnetic fields. You can make substitutions but you won't get the same strength of magnetism.
How do you make a magnet without a magnet?
You can rub a permanent magnet against something else that can be magnetized, like a paper clip.
Compare electromagnet and permanent magnets?
The difference between an electromagnet and a bar magnet is that the bar (steel) magnet is always turned on, therefore always magnetic. The electromagnet is a magnet that is powerd by a battery so you can turn it on and off.
Can a permanent magnet solenoid be modified to work like a permanent magnet linear generator?
yes - need to run electricity through it to make it a linear magnetic generator.
