Which type of materials experience a force within a magnetic field?

Ferromagnetic materials experience a force within a magnetic field due to their unique magnetic properties. These materials, such as iron, cobalt, and nickel, have unpaired electrons that align their magnetic moments in the presence of an external magnetic field. This alignment enhances their overall magnetization, allowing them to be attracted to magnets and even become permanent magnets themselves.

When placed in a magnetic field, ferromagnetic materials can effectively amplify the field and display strong magnetic behavior, making them pivotal in numerous applications such as electric motors, transformers, and magnetic storage devices. Their ability to retain magnetization after the external magnetic field is removed is a defining characteristic, which further distinguishes them in the context of magnetic interactions.