The principle of magnetic field generation

Since classical physics does not use the concept of elementary particles to study the magnetic field, both electromagnetism and electrodynamics define the cause of the magnetic field as the directional motion of point charges, and explain the cause of magnets as magnetic domains. Modern physics shows that the terminal structure of any matter is composed of electrons (with unit negative charge), protons (with unit positive charge) and neutrons (exhibiting electrical neutrality to the outside world). A point charge is a point of matter that contains excess electrons (with unit negative charge) or protons (with unit positive charge), so the reason for the magnetic field generated by the current can only be attributed to the magnetic field generated by the moving electrons.

A stationary electron has rest electron mass and unit negative charge, so it produces gravitational force and unit negative electric field force. When an external force accelerates a stationary electron and makes it move, the external force not only provides kinetic energy for the overall motion of the electron, but also provides magnetic energy for the magnetic field generated by the moving charge. It can be seen that the magnetic field is the magnetic energy material injected into the moving electrons by the external force through energy conversion. The magnetic field produced by the current or the magnetic field produced by the negatively charged point charge is the macroscopic manifestation of the magnetic field produced by a large number of moving electrons.

In the same way, the magnetic field generated by a moving positively charged point charge is the macroscopic manifestation of the magnetic energy material obtained by the excess protons from the external force. But its magnetic energy matter is attached to the quark with electric charge in it.

A physical field that transmits the interaction between moving charges or currents, which are generated by the moving charges or currents, and which also act as forces on other moving charges or currents in the generating field. Magnetic fields are a form of matter.

Between the magnet and the magnet, the force and torque are exerted on each other through the magnetic field generated by each other. Electric charges in motion create a magnetic field. The magnetic field produced by magnetic substances can be explained by the electric charge motion model.

​  Electric fields are created by electric charges. Electric fields are closely related to magnetic fields; sometimes a magnetic field generates an electric field, and sometimes an electric field generates a magnetic field. Maxwell's equations can describe electric fields, magnetic fields, electric currents and electric charges that produce these vector fields, and the detailed relationships between these physical quantities. According to the special theory of relativity, electric and magnetic fields are two sides of the electromagnetic field. Two reference frames, A and B, are set. Relative to reference frame A, reference frame B moves at a finite speed. When viewed from reference frame A, it is a pure electric field generated by stationary charges, and when viewed from reference frame B, it is the electric and magnetic fields generated by moving charges.