If you release a small piece of iron near a magnet, it will move towards the magnet, where does its

If you release a small piece of iron near the magnet, it will move towards the magnet and its kinetic energy will come from the magnetic force.

There are many primary magnets with two opposite poles in iron, and when there is no external magnetic field, these primary magnets are arranged disordered, and their magnetism cancels each other out and does not show magnetism to the outside. When the iron is brought close to the magnet, these original magnets are neatly arranged under the magnetic force of the magnet, so that the end close to the magnet has a polarity opposite to the polarity of the magnet and attracts each other to move towards the magnet.

Magnets are magnetic and can attract substances such as iron and nickel. The kinetic energy of the small iron piece is generated by the magnetism of the magnet.

Mainly internal organizational structure. Iron has two crystal structures. Pure iron above 912C° is a face-centered cubic lattice, and below is a body-centered cubic structure.

Iron in a face-centered cubic lattice is not ferromagnetic. When carbon is added to the iron, the temperature of this lattice transition is reduced to 727 C°. With the addition of other alloying elements, the transition temperature can even drop below room temperature.

This stainless steel, which maintains a face-centered cubic lattice at room temperature, is called austenitic stainless steel. This type of stainless steel is not ferromagnetic. The counterpart to this is a stainless steel that maintains a body-centered cubic lattice at room temperature, known as ferritic stainless steel or martensitic stainless steel. This type of stainless steel is ferromagnetic.

There is a magnetic field around the magnet, and the iron sheet has potential energy when placed in the magnetic field, and when the iron sheet is loosened, the potential energy is turned into kinetic energy.

It can be thought that the "potential energy" generated by the attraction of magnets is converted into kinetic energy, similar to the gravitational pull of the earth, gravity.

First of all, the kinetic energy theorem is transformed from Newton's second law, the object has kinetic energy if the combined external force is not zero, and the magnet has magnetic force, and when it makes the object move, the object has kinetic energy, I don't know if you understand it.

Magnetic field Magnetic force, force is the cause of changing the state of motion of an object.

Yes, the fact that iron is magnetic is a physical characteristic of its own and is not affected by external circumstances. Iron is a ferromagnetic material that has the ability to spontaneously magnetize at room temperature. This is due to the presence of magnetic moments due to the spin and orbital motion of electrons inside the iron atoms, which makes the entire iron material magnetic.

Even without the action of an external magnetic field, iron materials will still exhibit a certain degree of magnetism.

When the external magnetic field acts on the iron material, it will affect the arrangement of the magnetic moments inside the iron material, making it more orderly and enhancing the magnetic properties of the iron Zen code material. This phenomenon is known as magnetization, and the iron material retains a certain degree of magnetism after removing the external magnetic field deficit, which is known as residual magnetism or remanence.

Therefore, the magnetic properties of iron are inherent physical characteristics of its own and are not altered by external conditions. This is one of the reasons why iron is so important as a magnetic material in many applications.

Summary. A conductive winding that matches its power is wound around the outside of the core, and this coil that is vented with current is magnetic like a magnet, and it is also called an electromagnet.

Electromagnets can change what and what in addition to generating a magnetic field.

An electromagnet is a device that generates electromagnetism when energized.

A conductive winding that matches its power is wound around the outside of the core, and this coil that is vented with current is magnetic like a magnet, and it is also called an electromagnet.

It is also possible to change direct current to alternating current.

In addition to generating a magnetic field, an electromagnet can also convert direct current into alternating current.

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Magnetization refers to the transfer of ferromagnetic substances.

Iron, cobalt, nickel) and the pole of the magnet is in contact with or close to, showing the process of magnetism After removing the external magnetic field, the materials that still have strong magnetism are collectively called hard magnetic materials Therefore, the answer is: magnetization; Hard

Magnetic fields exert forces on various metal pairs, with no exceptions. But there are three scenarios. In this way, metals are divided into three types: paramagnets, countermagnets, and ferromagnets.

1.Paramagnets: Can be slightly attracted to magnets.

2.Countermagnet: Slightly repelled by the magnet.

3.Ferromagnets: Magnets are strongly attracted.

There are only three types of ferromagnets: iron, cobalt, and nickel. The rest are either paramagnets or countermagnets. There are also their alloys, whose magnetic properties are close to ferromagnets in varying degrees.

Stainless steel containing nickel can be (strongly) attracted to magnets. Stainless steels that do not contain nickel (often containing chromium) react weakly to this iron and are not easily noticed. The latter is harder because it contains chromium. The former is commonly known as stainless iron.

Aluminum and copper are suspended in long, thin wires and made to stand still without oscillation. Slowly approach aluminum or copper laterally with a magnet and you will find that they will be slightly attracted or repulsed. So they are paramagnets and inverse magnets, respectively.

It has an effect on iron, cobalt, nickel, and other metals in this group.

In the iron block, there are a large number of protomagnets with two opposite poles, and when there is no external magnetic field, the arrangement of these protomagnets is disordered, and their magnetism cancels each other out, and they do not show magnetism to the outside.

When the iron and the magnet are close to each other, these original magnets can be arranged relatively neatly under the action of the magnet, so that the end close to the magnet has a pole opposite to the polarity of the magnet, so that the two will attract each other.

This phenomenon indicates that iron can be magnetized by magnets due to the presence of primary magnets.

Metals such as copper and aluminum, on the other hand, do not have a primary magnet structure, so they cannot attract each other to magnets.

The essence of magnetism is electricity, which is the interaction between electric currents.

It is used for generators and motors, so all mechanical equipment with motors have magnets that can be used to generate sound, so all headphones and audio equipment that can make sound have magnets, in addition to magnetic fishing toys, magnets, refrigerator magnets, cabinet doors, door stoppers, belt buckles, notebook buckles, and many other aspects have used magnets.

The answer comes from Aier Magnetoelectric, the benchmark of China's magnetic material products industry.

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