NEET Physics Magnetic Properties of Materials MCQ Question
Which of the following statements about the magnetic properties of materials is correct?
Hard magnetic materials retain magnetization even after the external magnetic field is removed.
Soft magnetic materials are characterized by high retentivity and are used in permanent magnets.
In non-uniform magnetic fields, paramagnetic materials tend to move towards regions of low magnetic field strength.
The magnetization of a material is independent of the external magnetic field applied to it.
Correct Answer
Detailed Explanation
Hard magnetic materials, like Alnico, retain their magnetization after the external field is removed, as stated in the NCERT context. In contrast, soft magnetic materials do not retain magnetization and are used in applications requiring temporary magnetism.
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