Practice question · Select all that apply
Which statements about ferromagnetism are correct?
Hints
- Three describe ferromagnets; one describes a diamagnet.
- Ferromagnets have enormous positive susceptibility.
Show the answer
- A. Its response to an applied field is non-linear
- C. The material contains domains of aligned moments
- D. It shows hysteresis, so its state depends on its history
Why
Domains, non-linearity and history dependence are the ferromagnetic signature. A small negative susceptibility is diamagnetism, the opposite extreme.
Practise Magnetic Materials
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