Question

The property possessed by ferromagnetic substance only is:

• A. High curie temperature
• B. CV curve
• C. low curie temperature
• D. Hysteresis

Answer 1

Answer: (D)

Hysteresis

Answer 2

Ferromagnetic substances are uniquely characterized by the phenomenon of hysteresis, where their magnetization depends on their magnetic history, leading to a hysteresis loop in the B-H curve. This property is absent in paramagnetic and diamagnetic materials. While ferromagnetic materials also possess a Curie temperature (a critical temperature for phase transition), the options provided ("High Curie temperature", "low Curie temperature") refer to the magnitude of this temperature, not the existence of the Curie temperature itself as a distinct property. CV curve is unrelated to magnetism. Therefore, hysteresis is the most appropriate unique property listed.