What can block the magnetic field of a magnet and it will not be attracted or magnetized

I am a magnet manufacturer, and we generally use plastic gaskets.

Is it possible to electrify the wire?

Summary. The reason why the electromagnet is called a sky magnet is because the electromagnet is magnetic when it is energized, and it is not magnetic when it is powered off, and it is equivalent to a magnet when it is magnetic, which is attractive and repulsive to ordinary magnets, and when it is powered off, it does not attract or repel. Therefore, the electromagnet has a repulsive force with the magnet, and it will not want to suck without electricity.

Hope it helps.

Do electromagnets and magnets have repulsive force? Can an electromagnet without electricity attract a magnet?

The reason why the electromagnet is called a sky magnet is because the electromagnet is magnetic when it is energized, and it is not magnetic when it is powered off, and it is equivalent to a magnet when it is magnetic, which is attractive and repulsive to ordinary magnets, and when it is powered off, it does not attract or repel. Therefore, the electromagnet has a repulsive force with the magnet, and it will not want to suck without electricity. Hope it helps.

So what is the reason why my two electromagnets are small in repulsion?

The magnetic force of the electromagnet is related to the number of coils: the number of turns is small, the magnetic force is small, and the number of turns is large; The magnetic force of the electromagnet is related to the number of batteries used: the less the battery, the less the magnetic force, and the more the battery, the greater the magnetic force; The magnetic force of the electromagnet is related to the thickness of the coil, the thickness and length of the core, and other factors.

Why do magnets repel and attract each other? What is the scientific truth behind it? Answer: I feel that the questions and answers in the title are getting better and better; It involves magnetism and electromagnetism.

It's a question and answer that we ordinary people cringe at. To understand why magnets repel noisy ascending states and attract the same and opposite sexes, we must first understand "Why do magnets have magnetic force?" ”.

There is no really acceptable theoretical basis for this question, including the Englishman William, "Magnet", and Weber in Gibb's 1600 treatise on magnetism.

Maxwell. All use only a more abstract concept to calculate.

So far, scientists believe that natural magnetic fields and magnets are due to the rotation of the earth in the universe, and the elements that form the magnetic field are continuously and strongly combined with the current together with the rising source, so that the whole earth forms a huge magnetic field, but these are artificial magnets; Magnets are made up of iron, cobalt, nickel, and other metals. Its internal molecular structure is relatively special and it has a magnetic moment.

As early as 5,000 years ago, humans discovered natural magnets (Fe3O4). Magnetism is a force that has been known for many years.

Until it works, it is considered a magical power. It is closely related to electricity and can work for us. A fairly precise magnet can attract other objects or make them better (push away).

All of this is an invisible magnetic field that can be felt there. There are two places on the magnet where the magnetic field is strongest, which are the North Pole and the South Pole. On a bar magnet, there are both ends of the poles.

If you scatter some small pieces of iron around the magnet, they line up along the lines around the magnet.

Also pointing to magnetic field lines.

Magnetic materials like iron.

contains a domain called a magnetic domain.

area. If the material is not a magnet, these areas point in different directions (a). However, by rubbing the material, the magnetic domain can extend upwards and become a magnet (b).

A small magnetic rod parallel to the compass shows us that the north pole of the compass is equivalent to the Earth's magnetic field. The above is my personal opinion. My understanding of magnets is a bit pale due to my lack of knowledge.

Nonsense is inevitable in the above situation.

Magnets can produce magnetic fields, and some of them contain iron, cobalt, nickel and other metals to form permanent magnets, because in these metals, their atomic arrangements have a special structure, and neighboring atoms have strong interactions because of the spin of electrons, and then form tiny magnetic domains, and the spin magnetic moments of electrons in each magnetic domain are spontaneously oriented in one direction, so the magnetic domains have strong magnetic properties externally. For iron atoms, each magnetic domain contains about 10 20 iron atoms, and the scale is in the micron to millimeter range. Once an external magnetic field is applied, these magnetic domains will be unified in one direction under the action of the magnetic field, and the whole will be attracted to the magnet by the external magnetic field.

Scientific principle: In electromagnetism, electricity and magnetism are unified, electricity generates magnetism, and magnetism can also generate electricity, which can be described by Maxwell's equations, electromagnetic force is one of the four basic forces in the world, and the charge has the principle of homogeneous phase ascending rock repulsion and opposite-sex attracting. For the magnetic field generated by the moving charge, it also has the property of repulsion of the same sex and attraction of the opposite sex.

The principle of attraction and repulsion of Liangshan: When the same poles of two magnets are close to each other, due to the mutual repulsion of the magnetic field, the two magnets are like a force that separates them.

In simple terms, the repulsion of a magnet is due to the action of the magnetic field in the magnet. This is also what is said in physics, the same poles repel each other, and the opposite poles attract.

Electromagnetic force is one of the four fundamental forces in nature, the magnetic field and attraction of magnets are completely different, and the first charge has the principle of repulsion and attraction of opposites. It will be buried for the magnetic field generated by the moving charge, which also has the properties of repulsion of the same sex and attraction of the opposite sex.

It is because there will be an interaction force between the magnet and the magnetic field, and there are many magnetic field lines between the poles of the magnet, and the wide base potato will be divided into permanent magnets and soft magnetic front bodies, and when the same pole is close to it, there will be a repulsive force.

<>1. In addition to the ferromagnetic material with a thick partition layer that will shield the magnetic force, other materials cannot isolate the magnetic force, such as paper, wood, plastic, and aluminum lamps can continue to absorb iron.

2. The composition of the magnet is iron, cobalt, nickel and other atoms, and the internal structure of the atoms is relatively special, and it has a magnetic moment.

3. Shape magnets include square magnets, tile magnets, special-shaped magnets, cylindrical magnets, ring magnets, disc magnets, magnetic rod magnets, magnetic frame magnets, and attribute magnets include samarium cobalt magnets, NdFeB magnets, ferrite magnets, alnico magnets, iron-chromium-cobalt magnets, and industry magnets include magnetic components, motor magnets, rubber magnets, plastic magnets, etc.

4. Magnets are divided into permanent magnets and soft magnets, permanent magnets are added with strong magnetism, so that the spin of magnetic substances and the angular momentum of electrons are arranged in a fixed direction, and soft magnetism is to add electricity, and when the current is removed, the soft iron will slowly lose its magnetism. Magnets are capable of generating magnetic fields and have the property of attracting ferromagnetic substances such as iron, nickel, cobalt and other metals.

When the magnet is separated by a soft magnetic object, it does not attract iron, and the magnet can only be conducted in the soft magnetic object, so that the magnetism of the shielded magnet can be realized, and the soft magnetic material is easy to magnetize and demagnetize, and it is widely used in electrical equipment and electronic equipment.

Magnets are atoms with special internal structures such as iron, cobalt, and nickel, and are pure substances with magnetic moments, and magnets can generate magnetic fields that attract ferromagnetic substances such as iron, nickel, cobalt, and other metals.