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The temperature below which magnetic material can retain a permanent magnetization is called?

Curie temperature.


A material that holds its magnetic properties without losing them is a?

ferromagnetic material, such as iron, nickel, or cobalt. These materials can retain their magnetization even after the external magnetic field is removed.


What is magnetization of iron?

the process of converting iron to a permanent magnet is called magnetization. As iron is a ferro magnetic material it is magnetized by applying strong magnetic field across it , this makes the alignment of all the magnetic dipoles present in iron in the same direction .Even after the external magnetic field is removed they retain their arrangement , thus it becomes a permanent magnet


The ability of material to retain its magnetism is known as?

The ability of a material to retain its magnetism is known as magnetic hysteresis. It refers to the phenomenon where a material retains some magnetization even after the external magnetizing field is removed.


What material have high retentivity?

Materials like iron, nickel, and cobalt have high retentivity, which means they can retain a significant amount of magnetization even after the magnetic field is removed. This property makes them useful in applications such as permanent magnets and magnetic storage devices.


Is antimony magnetic?

Antimony is not magnetic in standard conditions because it is a diamagnetic material, meaning it creates a weak repulsive force in the presence of a magnetic field. It does not retain magnetization when the external magnetic field is removed.


A ferromagnetic material is best defined as any material that?

exhibits strong magnetic properties due to the alignment of magnetic moments in its structure. Ferromagnetic materials can be easily magnetized and retain their magnetization after the magnetic field is removed.


What is true about a ferromagnetic material?

A ferromagnetic material has a high magnetic permeability and can retain a strong magnetic field once magnetized. It exhibits spontaneous magnetization and can be easily magnetized and demagnetized. Ferromagnetic materials include iron, nickel, and cobalt.


Is a Refrigerator magnet a Permanent magnet?

No, a refrigerator magnet is not a permanent magnet. Refrigerator magnets are usually made of soft magnetic materials that become temporarily magnetized when in the presence of a magnetic field, allowing them to stick to the refrigerator. Permanent magnets, on the other hand, retain their magnetization over time without the need for an external magnetic field.


What is the significance of hysteresis?

Hysteresis is the delay between an observed outcome and the quantity of change applied.When a ferromagnetic material is magnetized in one direction, it will not relax back to zero magnetization when the imposed magnetizing field is removed. It must be driven back to zero by a field in the opposite direction. If an alternating magnetic field is applied to the material, its magnetization will trace out a loop called ahysteresis loop. The lack of retraceability of the magnetization curve is the property called hysteresis and it is related to the existence of magnetic domains in the material. Once the magnetic domains are reoriented, it takes some energy to turn them back again. This property of ferrromagnetic materials is useful as a magnetic "memory". Some compositions of ferromagnetic materials will retain an imposed magnetization indefinitely and are useful as "permanent magnets". The magnetic memory aspects of iron and chromium oxides make them useful in audiotape recording and for the magnetic storage of data on computer disks.Variations in Hysteresis CurvesThere is considerable variation in the hysteresis of different magnetic materials.


What causes a material to be classified as ferromagnetic?

Ferromagnetic materials have unpaired electrons in their atoms, which create magnetic moments that align spontaneously in the same direction when a magnetic field is applied. This alignment leads to the material exhibiting strong magnetic properties such as being able to retain magnetization after the external field is removed.


What is a piece of magnetic material that remains its magnetic proporties after it is removed form a magnetic field?

Many materials which are capable of being effected by a magnetic field will retain some of those properties once its no longer in direct contact with the field. One example is iron. It can become magnetized by being introduced to a magnetic field and then continue to remain magnetic once the source field is removed.