Physics · Magnetic Properties of Matter
Which of the following characteristics is true for ferromagnetic materials?
- 1They are strongly attracted to a magnetic field but do not exhibit any magnetic hysteresis loop.
- 2They show zero effect in an external magnetic field and have a relative permeability of exactly one.
- 3They are weakly repelled by an external magnetic field and have negative magnetic susceptibility.
- 4They retain a significant portion of their magnetization even after the external magnetic field is removed.✓
Correct answer
They retain a significant portion of their magnetization even after the external magnetic field is removed.
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