Instructions: In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
Input: In a material with this property, the remanence refers to its magnitude in the absence of a driving force, while coercivity measures how strong a field is needed to remove this property. Its lack of retraceability is noted by a hysteresis loop, and this phenomenon can be attributed to the unfilled energy levels in the 3d level of certain elements. The susceptibility of materials possessing this property can be determined by the Curie-Weiss law beyond a specific point. It is a result of permanent unpaired dipoles within domains that line up with an imposed magnetic field due to long range ordering. Once materials exhibiting this property surpass the Curie temperature, they tend to behave as paramagnets. FTP, name this form of magnetism common to particular metals, most notably observed in nickel, cobalt, and iron.
Output:
Science