Electrical and Magnetic Properties — Prelims Questions

Which of the following statements is INCORRECT regarding the electrical properties of solids?

Which of the following substances is expected to be diamagnetic?

Which type of magnetic material retains its magnetism even after the external magnetic field is removed?

Silicon is doped with phosphorus. What type of semiconductor is formed, and what are the majority charge carriers?

Which of the following statements correctly describes the behavior of a paramagnetic substance in an external magnetic field?

Which of the following materials is an example of a ferrimagnetic substance?