what is magnet and describe their types with example
Answers
Answer:
There are four types of permanent magnets:
Ceramic or ferrite. Alnico. Samarium Cobalt (SmCo) Neodymium Iron Boron (NIB
What is a Magnet?
A magnet is defined as
An object which is capable of producing magnetic field and attracting unlike poles and repelling like poles.
Properties of Magnet
Following are the basic properties of magnet:
When a magnet is dipped in iron filings, we can observe that the iron filings cling to the end of the magnet as the attraction is maximum at the ends of the magnet. These ends are known as poles of the magnets.
Magnetic poles always exist in pairs.
Whenever a magnet is suspended freely in mid-air, it always points towards north-south direction. Pole pointing towards geographic north is known as the North Pole and the pole pointing towards geographic south is known as the South Pole.
Like poles repel while unlike poles attract.
The magnetic force between the two magnets is greater when the distance between these magnets are lesser.
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Types of Magnets
There are three types of magnets, and they are as follows:
Permanent magnet
Temporary magnet
Electromagnets
Permanent Magnet
Permanent magnets are those magnets that are commonly used. They are known as permanent magnets because they do not lose their magnetic property once they are magnetized.
Following are the ways to demagnetize the permanent magnets:
Exposing magnets to extreme temperatures.
The magnetic attraction between the magnet’s atoms gets loosen when they are hammered.
Stroking one magnet with the other in an inappropriate manner will reduce the magnetic strength.
There are four types of permanent magnets:
Ceramic or ferrite
Alnico
Samarium Cobalt (SmCo)
Neodymium Iron Boron (NIB)
Temporary Magnet
Temporary magnets can be magnetized in the presence of a magnetic field. When the magnetic field is removed, these materials lose their magnetic property. Iron nails and paper-clips are examples of the temporary magnet.
Electromagnets
Electromagnets consist of a coil of wire wrapped around the metal core made from iron. When this material is exposed to an electric current, the magnetic field is generated making the material behave like a magnet. The strength of the magnetic field can be controlled by controlling the electric current.
Explanation:
Hope it helps you.