Curie-Weiss law is applicable to which of the following materials?(a) Piezoelectric(b) Ferroelectric(c) Pyroelectric(d) Anti-ferroelectricI had been asked this question in an interview for internship.My query is from Electric Fields in Material Space in chapter Electric Fields in Material Space of Electromagnetic Theory

Curie-Weiss law is applicable to which of the following materials?(a)

1.	Curie-Weiss law is applicable to which of the following materials?(a) Piezoelectric(b) Ferroelectric(c) Pyroelectric(d) Anti-ferroelectricI had been asked this question in an interview for internship.My query is from Electric Fields in Material Space in chapter Electric Fields in Material Space of Electromagnetic Theory
Answer» Correct CHOICE is (B) Ferroelectric The EXPLANATION: Curie-Weiss law is given by χe = εr -1 = C/(T-θ), where C is the curie constant and θ is the characteristic TEMPERATURE which is usually a few degrees HIGHER than the curie temperature for ferromagnetic materials.

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