×

Of the three chief kinds of magnetic materials (diamagnetic, paramagnetic, and ferromagnetic), which are used to make permanent magnets?

Of the three chief kinds of magnetic materials (diamagnetic, paramagnetic, and ferromagnetic), which are used to make permanent magnets?

Explanation

Ferromagnetic materials (such as iron, cobalt, and nickel) have a strong attraction to magnetic fields and can retain their magnetism even after the external magnetic field is removed.

This property makes them ideal for making permanent magnets.

  • Diamagnetic materials are repelled by magnetic fields and cannot retain magnetism.

  • Paramagnetic materials are weakly attracted to magnetic fields but do not retain magnetism after the external field is removed.