Question

Magnetic Materials. What are the three main classifications of materials in terms of their magnetization properties? By which physical property are materials categorized into these groups? How do they differ in terms of the internal magnetization field that is induced by an externally-applied magnetic field H ?

Answer 1

Materials are classified into three main categories based on their magnetization properties: paramagnetic, diamagnetic, and ferromagnetic.

Step-by-step explanation:

In terms of their magnetization properties, materials are classified into three main categories: paramagnetic, diamagnetic, and ferromagnetic. These classifications are based on their response to an externally-applied magnetic field.

Paramagnetic materials, such as aluminum or platinum, become magnetized in an external magnetic field but lose their magnetism when the field is removed.

Diamagnetic materials, like copper or lead, are weakly repelled by an external magnetic field and have no permanent magnetization.

Ferromagnetic materials, including iron, cobalt, and nickel, are strongly attracted to a magnetic field and can retain their magnetization even after the external field is removed.