Temporary Magnets
Temporary magnets are materials that can become magnetized when exposed to a magnetic field but lose their magnetism once the field is removed. Common examples include soft iron and certain alloys, which are often used in applications like electromagnets. These magnets are useful in devices such as electric motors and transformers, where a temporary magnetic effect is needed.
The magnetization of temporary magnets occurs due to the alignment of their atomic magnetic domains. When the external magnetic field is applied, these domains align in the direction of the field, creating a magnetic effect. Once the field is removed, the domains return to their random orientation, and the material loses its magnetism.