Magnets: Difference between revisions
No edit summary |
No edit summary |
||
(5 intermediate revisions by the same user not shown) | |||
Line 1: | Line 1: | ||
{{Projects infobox | {{Projects infobox | ||
|image = | |image = | ||
| | |designers = | ||
| | |date = | ||
|tools | |vitamins = | ||
|parts | |materials = | ||
|techniques | |transformations = | ||
| | |lifecycles = | ||
|git | |tools = [[Wrenches]] | ||
|parts = [[Motors]], [[:Category:Controllers|Controllers]] | |||
|techniques = | |||
|files = | |||
|suppliers = | |||
|git = | |||
}} | }} | ||
[[Category:Parts]] | [[Category:Parts]] | ||
[[Category:Electric parts]] | [[Category:Electric parts]] | ||
=Introduction= | |||
A magnet is a material or object that produces a magnetic field. This magnetic field is invisible but is responsible for the most notable property of a magnet: a force that pulls on other ferromagnetic materials, such as iron, steel, nickel, cobalt, etc. and attracts or repels other magnets. | |||
A permanent magnet is an object made from a material that is magnetized and creates its own persistent magnetic field. An everyday example is a refrigerator magnet used to hold notes on a refrigerator door. Materials that can be magnetized, which are also the ones that are strongly attracted to a magnet, are called ferromagnetic (or ferrimagnetic). These include the elements iron, nickel and cobalt and their alloys, some alloys of rare-earth metals, and some naturally occurring minerals such as lodestone. Although ferromagnetic (and ferrimagnetic) materials are the only ones attracted to a magnet strongly enough to be commonly considered magnetic, all other substances respond weakly to a magnetic field, by one of several other types of magnetism. | |||
=Challenges= | |||
=Approaches= | |||
=References= | |||
* [https://en.wikipedia.org/wiki/Magnet Wikipedia: Magnet] |
Latest revision as of 08:56, 23 September 2021
Tools: | Wrenches |
---|---|
Parts: | Motors, Controllers |
Introduction
A magnet is a material or object that produces a magnetic field. This magnetic field is invisible but is responsible for the most notable property of a magnet: a force that pulls on other ferromagnetic materials, such as iron, steel, nickel, cobalt, etc. and attracts or repels other magnets.
A permanent magnet is an object made from a material that is magnetized and creates its own persistent magnetic field. An everyday example is a refrigerator magnet used to hold notes on a refrigerator door. Materials that can be magnetized, which are also the ones that are strongly attracted to a magnet, are called ferromagnetic (or ferrimagnetic). These include the elements iron, nickel and cobalt and their alloys, some alloys of rare-earth metals, and some naturally occurring minerals such as lodestone. Although ferromagnetic (and ferrimagnetic) materials are the only ones attracted to a magnet strongly enough to be commonly considered magnetic, all other substances respond weakly to a magnetic field, by one of several other types of magnetism.