[amp_mcq option1=”Diamagnetic materials” option2=”Non-magnetic materials” option3=”Paramagnetic materials” option4=”None of the others” correct=”option2″]
The correct answer is: B. Non-magnetic materials
Ferromagnetic materials are materials that are attracted to magnets. They are made up of tiny regions called domains, which are aligned in the same direction when a magnetic field is applied. This alignment causes the material to become magnetized.
The Curie temperature is the temperature at which a ferromagnetic material loses its magnetism. This happens because the domains become randomly aligned as the temperature increases. Above the Curie temperature, the material is said to be paramagnetic. Paramagnetic materials are weakly attracted to magnets.
Diamagnetic materials are materials that are repelled by magnets. They are made up of atoms or molecules that have a slight negative magnetic field. This negative field is aligned against the external magnetic field, which causes the material to be repelled.
None of the others is the correct answer because it does not describe what happens to ferromagnetic materials at the Curie temperature.