1, electrical and magnetic phenomena of magnetic field;

2. The force of magnetic field on current;

3. The force of magnetic field on moving charge;

4. Electromagnetic induction and Lenz's law;

5. Faraday's law of electromagnetic induction;

6. The application and self-induction of Faraday's law of electromagnetic induction;

7. alternating current;

8, transformer, long-distance transmission;

9, electromagnetic oscillation electromagnetic wave.

Second, the basic concept:

(a), the electrical and magnetic phenomena of magnetic field:

1, magnetic field and electric field, is also a substance; The interaction between magnet, magnet and current, current and current occurs through magnetic field. There is a magnetic field around the magnet; Oster's experiment shows that there are magnetic fields around electrified wires and magnets.

2. Ampere hypothesis holds that there is molecular current in atoms, molecules and other material particles, and the molecular current makes each material particle become a tiny magnet; Ampere hypothesis can explain the phenomenon that the soft iron bar is magnetized and the magnet loses its magnetism due to high temperature or knocking. Molecular current is actually formed by the movement of electrons inside atoms around the nucleus; Like an electric current, the magnetic field of a magnetic rod is formed by the movement of electric charges.