Define the term induced magnetism.

Induced magnetism refers to the temporary development of magnetic properties in a material that is normally non-magnetic when it is brought into the influence of an external magnetic field. This phenomenon occurs without changing the material's intrinsic properties or composition.

When a non-magnetic material is exposed to a magnetic field, the individual magnetic moments (tiny atomic or molecular magnets) within the material align themselves in the direction of the external magnetic field. As a result, the material becomes temporarily magnetized while within the magnetic field. However, once the external magnetic field is removed, the material typically loses its induced magnetism and returns to its non-magnetic state.

Common examples of induced magnetism include:

Soft Iron: Soft iron is often used in the cores of electromagnets because it can be easily magnetized when an electric current flows through a coil wrapped around it. When the current is turned off, the induced magnetism disappears.

Paramagnetic and Diamagnetic Materials: Some materials, like paramagnetic substances (which are weakly attracted to magnetic fields) and diamagnetic substances (which are weakly repelled by magnetic fields), exhibit induced magnetism when placed in a magnetic field. However, their magnetism is generally much weaker than that of ferromagnetic materials.

Temporary Magnets: Everyday objects, such as paperclips, can be temporarily magnetized when placed near a strong permanent magnet. They will become magnetic as long as they are in close proximity to the magnet but lose their magnetism when separated from it.

In summary, induced magnetism is a temporary magnetization of a non-magnetic material caused by exposure to an external magnetic field, and it typically disappears when the material is removed from the magnetic field.