Write three points of differences between para, dia-and ferro- mangetic materials, giving one example for each.

Explanation

To answer the question regarding the differences between paramagnetic, diamagnetic, and ferromagnetic materials, we can outline the differences as follows:

### Differences between Paramagnetic, Diamagnetic, and Ferromagnetic Materials:

1. **Magnetic Moment:**
- **Paramagnetic Materials:** These materials have individual atoms that possess a non-zero magnetic moment. This means that the atoms can be weakly magnetized in the presence of an external magnetic field.
- **Diamagnetic Materials:** In these materials, the individual atoms do not have a magnetic moment. They exhibit no net magnetic moment of their own.
- **Ferromagnetic Materials:** These materials have individual atoms that possess a non-zero magnetic moment, and they can become strongly magnetized in the presence of an external magnetic field.
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