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ferromagnetic
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∙ 13y ago
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Are permanent magnets are used in doorbells?
no it is not . a temporary magnet is used instead. If you use a permanent magnet, the doorbell will keep on ringing
Why should the material used for making permanent magnets have high coercivity?
The material should have high retentivity so that the magnet is strong and high coercivity so that the magnetisation is not erased by stray magnetic fields
Why soft iron is used for making a permanent magnet?
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Is magnetite a magnet?
No, it's a permanent magnet. It consists of an iron oxide, and iron is a permanent magnet.
Is a bar magnet a permanent magnet?
A permanent magnet is a magnet which will keep its magnetism for a very long time and is difficult to change. No, As I think a permanent magnet means they have abilities to hold the magnetism when they are magnetized. Such as Alnico permanent magnets, but in fact, they can be demagnetized,such as high temperature, hit each other,pulse waves, out magnetic field influence...What's more, different permanent magnetic material, have different abilities on holding magnetism,they can be used in different environments. you can find some details from some manufacturers website, to learn some knowledges.
Can a permanent magnet and a temporary magnet be made from the same magnetic material?
no they can not.
When all of the magnet domains line up on their own the material is called?
a permanent magnet
What is a lifting magnet?
A lifting magnet is an electromagnet that is meant to hold or move material that comes in contact with the magnet. This is the opposite of a traction magnet.
A material that holds its magnetic properties without losing them is a?
permanent magnet .
Are permanent magnets are used in doorbells?
no it is not . a temporary magnet is used instead. If you use a permanent magnet, the doorbell will keep on ringing
Are permanent magnets used in doorbells?
no it is not . a temporary magnet is used instead. If you use a permanent magnet, the doorbell will keep on ringing
Which magnetic material can retain permanent magnetization?
False permanent magnets can but electromagnets need a running current A+
What is A magnetic substance can also be made into a?
If you are talking about a non-magnet item then the item will become a magnet for a period of time. Changes in heat, how much it is used, or time can disable the magnet. Magnet!
Is an electric bell a permanent magnet?
An electo-magnet is used in an electric bell.
How are magnets used in fridge door works?
They basically work just like any other permanent magnet. The magnet, and the magnetic material (iron-based) in the refrigerator, attract one another.
When all of the magnetic domains line up on their own the material is called?
a permanent magnet
When all of the magnetic domains line up their own the material is called?
a permanent magnet
