Since magnetic field is a substance, what is the chemical formula of magnetic field?

The electromagnetic field is the medium of electromagnetic action, is a unified whole, the electric field and the magnetic field are its closely related, interdependent two sides, the changing electric field produces the magnetic field, the changing magnetic field produces the electric field, and the changing electromagnetic field propagates in space in the form of waves. Electromagnetic waves propagate at a finite speed, have exchangeable energy and momentum, the interaction between electromagnetic waves and physical objects, the mutual transformation of electromagnetic waves and particles, etc., all prove that electromagnetic fields are objectively existing substances, and its "specialness" lies only in the absence of static mass.

The magnetic field, the electric field, is a substance, but it is a special substance, not that any substance has a chemical expression, at least I don't know it now, to say that it is a substance, is a kind of general materialist thought, that is, not a spiritual force.

Hey, China's early physics education was always summarized in some very vague philosophical terms, and what is even more sad is that sometimes "Marx once said" was quoted, and he never forgot to instill Marxist philosophical ideas into his friends.

You're asking this question very well and creatively! A magnetic field is a field matter, not a physical object. You don't distinguish between them.

Read the book well to strengthen your understanding.

The magnetic field is a field substance, not a physical object, so it has no specific form and is not made up of atoms.

It is a special substance! It is not made up of molecular atoms.

Do substances have chemical formulas? Oops, I'm lonely.

Does someone tell you that a substance has a chemical formula?

The magnetic field is a special substance that cannot be seen or touched, the magnetic field is not composed of atoms or molecules, but the magnetic field exists objectively. The magnetic field has the radiative properties of wave particles. There is a magnetic field around the magnet, and the interaction between the magnets is mediated by the magnetic field, so the two magnets do not need to be in contact at the physical level.

An electric current, a moving charge, a magnet, or a special form of matter that exists in the space around the changing electric field. Since the magnetism of a magnet is the same as the current, the current is the movement of an electric charge, so in a nutshell, the magnetic field is generated by the change of the moving charge or electric field.

From the point of view of modern physics, the only ultimate components that can form a charge in matter are electrons (with a unit negative charge) and protons (with a unit positive charge), so the negative charge is a point object with excess electrons, and the positive charge is a point object with excess protons. The real source of the field where the moving charge produces the magnetic field is the magnetic field produced by the moving electrons or moving protons. For example, the magnetic field generated by an electric current is the magnetic field generated by electrons moving in a wire.

The same substance is manifested in two most basic phenomenal forms, one is the physical and particle forms; One is the form of field and wave. For details, please refer to the references.

The magnetic field belongs to the field matter, so of course it is a substance.

Substance? Matter is defined as the physical objects and fields that make up all objects in the universe.

All matter must exist objectively; The second is that it is bound to interact with other substances, and absolutely isolated matter does not exist, or we cannot perceive the existence of such "matter".

Since the interaction between many substances must be achieved through the "field", there is the theory of "field matter", and this field also exists objectively. Ordinary matter and magnetic matter are the same in the object, but magnetic matter can produce a substance called a "magnetic field" around it, but there is no material around non-magnetic objects. So there is a "field", so there is a force to interact, and without a "field", of course there can be no interaction.

It is this objective distinction between "being" and "non-existence", between acting and not working.

We can tell if there is a field between two objects.

From the perspective of "whether there is an action and whether such an action objectively exists", we can distinguish and understand "field matter", and we will often not misunderstand its category.

At the same time, there is a difference between the "field matter" and the physical matter we come into contact with, and the most typical difference that makes it easy to misunderstand whether it exists is that it is invisible.

I majored in physics. By definition, a magnetic field is a substance. I don't know how many times I've told this in books and from professors, so I can't be wrong.

No, it's a property of a magnet, not a substance that really exists.