What is a magnetic field and why does a person have it? What is the source of the magnetic field

There are a lot of topics on the Internet dedicated to studying magnetic field. It should be noted that many of them differ from the average description that exists in school textbooks. My task is to collect and systematize all freely available material on the magnetic field in order to focus a New Understanding of the magnetic field. The magnetic field and its properties can be studied using a variety of techniques. With the help of iron filings, for example, Comrade Fatyanov conducted a competent analysis at http://fatyf.narod.ru/Addition-list.htm

Using a kinescope. I don't know this man's last name, but I know his nickname. He calls himself "Veterok". When a magnet is brought close to the kinescope, a “honeycomb pattern” is formed on the screen. You might think that the “grid” is a continuation of the kinescope grid. This is a magnetic field imaging technique.

I began to study the magnetic field using ferromagnetic fluid. It is the magnetic fluid that maximally visualizes all the subtleties of the magnetic field of the magnet.

From the article “what is a magnet” we found out that a magnet is fractalized, i.e. a reduced-scale copy of our planet, the magnetic geometry of which is as identical as possible to a simple magnet. Planet earth, in turn, is a copy of that from the depths of which it was formed - the sun. We found out that a magnet is a kind of induction lens that focuses on its volume all the properties of the global magnet of planet earth. There is a need to introduce new terms with which we will describe the properties of the magnetic field.

An inductive flow is a flow that originates at the poles of the planet and passes through us in the geometry of a funnel. The north pole of the planet is the entrance to the funnel, the south pole of the planet is the exit of the funnel. Some scientists call this flow the ethereal wind, saying that it "has galactic origin." But this is not an “ethereal wind” and no matter what ether, it is an “induction river” that flows from pole to pole. The electricity in lightning is of the same nature as the electricity produced by the interaction of a coil and a magnet.

The best way to understand that there is a magnetic field is to see him. It is possible to think and make countless theories, but from the standpoint of understanding the physical essence of the phenomenon, it is useless. I think that everyone will agree with me if I repeat the words, I don’t remember who, but the essence is that the best criterion is experience. Experience and more experience.

At home, I did simple experiments, but they allowed me to understand a lot. Simple magnet cylindrical... And I twisted it this way and that. I poured magnetic fluid on it. There is an infection, it doesn’t move. Then I remembered that I read on some forum that two magnets compressed by like poles in a sealed area increase the temperature of the area, and vice versa lower it with opposite poles. If temperature is a consequence of the interaction of fields, then why shouldn’t it also be the cause? I heated the magnet using a 12 volt "short circuit" and a resistor by simply placing the heated resistor against the magnet. The magnet heated up and the magnetic fluid first began to twitch, and then became completely mobile. The magnetic field is excited by temperature. But how can this be, I asked myself, because in the primers they write that temperature weakens magnetic properties magnet. And this is true, but this “weakening” of the kagba is compensated by the excitation of the magnetic field of this magnet. In other words, the magnetic force does not disappear, but is transformed due to the excitation of this field. Excellent Everything is spinning and everything is spinning. But why does the rotating magnetic field have exactly this rotation geometry, and not some other? At first glance, the movement is chaotic, but if you look through a microscope, you can see that in this movement there is a system. The system does not belong to the magnet in any way, but only localizes it. In other words, a magnet can be considered as an energy lens that focuses disturbances within its volume.

The magnetic field is excited not only by an increase in temperature, but also by a decrease in temperature. I think that it would be more correct to say that the magnetic field is excited by a temperature gradient rather than by any specific temperature sign. The fact of the matter is that there is no visible “restructuring” of the structure of the magnetic field. There is a visualization of the disturbance that passes through the region of this magnetic field. Imagine a disturbance that moves in a spiral from the north pole to the south through the entire volume of the planet. So the magnetic field of a magnet = local part of this global flow. Do you understand? However, I am not sure which thread exactly... But the fact is that it is a thread. Moreover, there are not one, but two threads. The first is external, and the second is inside it and moves together with the first, but rotates in the opposite direction. The magnetic field is excited due to the temperature gradient. But we again distort the essence when we say “the magnetic field is excited.” The fact is that it is already in an excited state. When we apply a temperature gradient, we distort this excitation into a state of imbalance. Those. We understand that the excitation process is a constant process in which the magnetic field of the magnet is located. The gradient distorts the parameters of this process so that we optically notice the difference between its normal excitation and the excitation caused by the gradient.

But why in stationary state Is the magnetic field of a magnet stationary? NO, it is also mobile, but relative to moving reference systems, for example us, it is motionless. We move in space with this disturbance of Ra and it seems motionless to us. The temperature we apply to the magnet creates a local imbalance of this focused system. A certain instability will appear in the spatial lattice, which is a honeycomb structure. After all, bees do not build their houses from scratch, but they cling to the structure of space with their building material. Thus, based on purely experimental observations, I conclude that the magnetic field of a simple magnet is a potential system of local imbalance of the lattice of space, in which, as you already guessed, there is no place for atoms and molecules that no one has ever seen. Temperature is like the “ignition key” in this local system, includes imbalance. I am currently carefully studying methods and means to manage this imbalance.

What is a magnetic field and how does it differ from an electromagnetic field?

What is a torsion or energy information field?

This is all the same thing, but localized by different methods.

The current strength is a plus and a repulsive force,

tension is a minus and a force of attraction,

a short circuit, or, say, a local imbalance of the lattice - there is resistance to this interpenetration. Or the interpenetration of father, son and holy spirit. We remember that the metaphor of “Adam and Eve” is the old understanding of the X and Y chromosomes. For understanding the new is a new understanding of the old. “Current strength” is a vortex emanating from the constantly rotating Ra, leaving behind an informational interweaving of itself. Tension is another vortex, but inside the main vortex of Ra and moving with it. Visually, this can be represented as a shell, the growth of which occurs in the direction of two spirals. The first is external, the second is internal. Or one inward and clockwise, and the second outward and counterclockwise. When two vortices interpenetrate each other, they form a structure, like the layers of Jupiter, which move in different sides. It remains to understand the mechanism of this interpenetration and the system that is formed.

Approximate tasks for 2015

1. Find methods and means to control imbalance.

2. Identify the materials that most influence the imbalance of the system. Find the dependence on the state of the material according to Table 11 of the child.

3. If anything Living being, in its essence, is the same localized imbalance, therefore it must be “seen”. In other words, it is necessary to find a method of fixing a person in other frequency spectra.

4. The main task is to visualize non-biological frequency spectra in which the continuous process of human creation occurs. For example, using a means of progress, we analyze frequency spectra that are not included in the biological spectrum of human feelings. But we only register them, but we cannot “realize” them. Therefore, we do not see further than our senses can perceive. This is my main goal for 2015. Find a technique for technical awareness of the non-biological frequency spectrum in order to see the information basis of a person. Those. essentially his soul.

A special type of study is a magnetic field in motion. If we pour magnetic fluid onto a magnet, it will occupy the volume of the magnetic field and will be stationary. However, it is necessary to check the experiment of “Veterok” where he brought a magnet to the monitor screen. There is an assumption that the magnetic field is already in an excited state, but the volume of liquid is held in a stationary state. But I haven't checked it yet.

A magnetic field can be generated by applying temperature to a magnet, or by placing a magnet in an induction coil. It should be noted that the liquid is excited only at a certain spatial position of the magnet inside the coil, making a certain angle to the axis of the coil, which can be found experimentally.

I conducted dozens of experiments with moving magnetic fluid and set myself the following goals:

1. Identify the geometry of fluid movement.

2. Identify the parameters that affect the geometry of this movement.

3. What place does the movement of fluid occupy in the global movement of planet Earth.

4. Does the spatial position of the magnet depend on the geometry of movement acquired by it?

5. Why "ribbons"?

6. Why do ribbons curl?

7. What determines the vector of ribbon twisting?

8. Why do cones shift only through nodes, which are the vertices of the honeycomb, and only three nearby ribbons are always twisted?

9. Why does the displacement of the cones occur abruptly, upon reaching a certain “twist” in the nodes?

10. Why is the size of the cones proportional to the volume and mass of the liquid poured onto the magnet?

11. Why is the cone divided into two distinct sectors?

12. What place does this “separation” occupy in the context of interaction between the poles of the planet.

13. How does the geometry of fluid movement depend on the time of day, season, solar activity, intention of the experimenter, pressure and additional gradients. For example, a sudden change from cold to hot

14. Why the geometry of cones identical to Varja geometry- special weapons of the returning gods?

15. Is there any information in the archives of the special services of 5 machine guns about the purpose, availability or storage of samples of this type of weapon?

16. What do the gutted storehouses of knowledge of various secret organizations say about these cones and is the geometry of the cones connected with the Star of David, the essence of which is the identity of the geometry of the cones. (Masons, Juzeites, Vaticans, and other uncoordinated entities).

17. Why there is always a leader among cones. Those. a cone with a “crown” on top, which “organizes” the movements of 5,6,7 cones around itself.

cone at the moment of displacement. Jerk. “...only by moving in the letter “G” will I get to it.”...

Magnetic field and its characteristics. When passing electric current along the conductor around it is formed a magnetic field. A magnetic field represents one of the types of matter. It has energy, which manifests itself in the form of electromagnetic forces acting on individual moving electric charges (electrons and ions) and on their flows, i.e. electric current. Under the influence of electromagnetic forces, moving charged particles deviate from their original path in a direction perpendicular to the field (Fig. 34). The magnetic field is formed only around moving electric charges, and its action also extends only to moving charges. Magnetic and electric fields inseparable and form together a single electromagnetic field. Any change electric field leads to the appearance of a magnetic field and, conversely, any change in the magnetic field is accompanied by the appearance of an electric field. Electromagnetic field propagates at the speed of light, i.e. 300,000 km/s.

Graphic representation of the magnetic field. Graphically, the magnetic field is represented by magnetic lines of force, which are drawn so that the direction of the field line at each point of the field coincides with the direction of the field forces; magnetic field lines are always continuous and closed. The direction of the magnetic field at each point can be determined using a magnetic needle. The north pole of the arrow is always set in the direction of the field forces. The end of a permanent magnet from which the field lines emerge (Fig. 35, a) is considered to be the north pole, and the opposite end, into which the field lines enter, is the south pole (the field lines passing inside the magnet are not shown). The distribution of field lines between the poles of a flat magnet can be detected using steel filings sprinkled on a sheet of paper placed on the poles (Fig. 35, b). The magnetic field in the air gap between two parallel opposite poles of a permanent magnet is characterized by a uniform distribution of magnetic force lines (Fig. 36) (field lines passing inside the magnet are not shown).

Rice. 37. Magnetic flux penetrating the coil when its positions are perpendicular (a) and inclined (b) relative to the direction of the magnetic lines of force.

For a more visual representation of the magnetic field, the field lines are placed less frequently or denser. In those places where the magnetic field is stronger, the field lines are located closer to each other, and in places where it is weaker, they are further apart. The lines of force do not intersect anywhere.

In many cases, it is convenient to consider magnetic lines of force as some elastic stretched threads that tend to contract and also repel each other (have mutual lateral thrust). This mechanical concept of lines of force makes it possible to clearly explain the emergence of electromagnetic forces during the interaction of a magnetic field and a conductor with current, as well as two magnetic fields.

The main characteristics of the magnetic field are magnetic induction, magnetic flux, magnetic permeability and magnetic field strength.

Magnetic induction and magnetic flux. The intensity of the magnetic field, i.e. its ability to produce work, is determined by a quantity called magnetic induction. The stronger the magnetic field created by a permanent magnet or electromagnet, the greater the induction it has. Magnetic induction B can be characterized by the density of magnetic field lines, i.e., the number of field lines passing through an area of 1 m 2 or 1 cm 2 located perpendicular to the magnetic field. There are homogeneous and inhomogeneous magnetic fields. In a uniform magnetic field, the magnetic induction at each point in the field has the same value and direction. The field in the air gap between the opposite poles of a magnet or electromagnet (see Fig. 36) can be considered homogeneous at some distance from its edges. Magnetic flux Ф passing through any surface is determined by the total number of magnetic lines of force penetrating this surface, for example coil 1 (Fig. 37, a), therefore, in a uniform magnetic field

F = BS (40)

where S is area cross section surface through which magnetic field lines pass. It follows that in such a field the magnetic induction is equal to the flux divided by the cross-sectional area S:

B = F/S (41)

If any surface is located obliquely with respect to the direction of the magnetic field lines (Fig. 37, b), then the flux penetrating it will be less than if it is perpendicular to its position, i.e. Ф 2 will be less than Ф 1 .

In the SI system of units, magnetic flux is measured in webers (Wb), this unit has the dimension V*s (volt-second). Magnetic induction in SI units is measured in teslas (T); 1 T = 1 Wb/m2.

Magnetic permeability. Magnetic induction depends not only on the strength of the current passing through a straight conductor or coil, but also on the properties of the medium in which the magnetic field is created. The quantity characterizing the magnetic properties of a medium is absolute magnetic permeability? A. Its unit of measurement is henry per meter (1 H/m = 1 Ohm*s/m).
In a medium with greater magnetic permeability, an electric current of a certain strength creates a magnetic field with greater induction. It has been established that the magnetic permeability of air and all substances, with the exception of ferromagnetic materials (see § 18), has approximately the same value as the magnetic permeability of vacuum. The absolute magnetic permeability of a vacuum is called the magnetic constant, ? o = 4?*10 -7 H/m. The magnetic permeability of ferromagnetic materials is thousands and even tens of thousands of times greater than the magnetic permeability of non-ferromagnetic substances. Magnetic permeability ratio? and any substance to the magnetic permeability of vacuum? o is called relative magnetic permeability:

? = ? A /? O (42)

Magnetic field strength. The intensity And does not depend on the magnetic properties of the medium, but takes into account the influence of the current strength and the shape of the conductors on the intensity of the magnetic field at a given point in space. Magnetic induction and tension are related by the relation

H = B/? a = B/(?? o) (43)

Consequently, in a medium with constant magnetic permeability, the magnetic field induction is proportional to its strength.
Magnetic field strength is measured in amperes per meter (A/m) or amperes per centimeter (A/cm).

In the last century, various scientists put forward several assumptions about the Earth's magnetic field. According to one of them, the field appears as a result of the rotation of the planet around its axis.

It is based on the curious Barnett-Einstein effect, which is that when any body rotates, a magnetic field arises. Atoms in this effect have their own magnetic moment as they rotate around their axis. This is how the Earth's magnetic field appears. However, this hypothesis did not stand up to experimental testing. It turned out that the magnetic field obtained in such a non-trivial way is several million times weaker than the real one.

Another hypothesis is based on the appearance of a magnetic field due to the circular motion of charged particles (electrons) on the surface of the planet. She also turned out to be insolvent. The movement of electrons can cause the appearance of a very weak field, and this hypothesis does not explain the inversion of the Earth's magnetic field. It is known that the north magnetic pole does not coincide with the north geographic pole.

Solar wind and mantle currents

The mechanism of formation of the magnetic field of the Earth and other planets solar system has not been fully studied and still remains a mystery to scientists. However, one proposed hypothesis explains the inversion and the magnitude of the real field induction quite well. It is based on the work of the internal currents of the Earth and the solar wind.

The Earth's internal currents flow in the mantle, which consists of substances with very good conductivity. The source of current is the core. Energy from the core to the surface of the earth is transferred by convection. Thus, in the mantle there is a constant movement of matter, which forms a magnetic field according to the well-known law of motion of charged particles. If we associate its appearance only with internal currents, it turns out that all planets whose direction of rotation coincides with the direction of rotation of the Earth should have an identical magnetic field. However, it is not. Jupiter's north geographic pole coincides with its north magnetic pole.

Not only internal currents participate in the formation of the Earth's magnetic field. It has long been known that it responds to the solar wind, a stream of high-energy particles coming from the Sun as a result of reactions occurring on its surface.

The solar wind is, by its nature, an electric current (the movement of charged particles). Carried away by the rotation of the Earth, it creates a circular current, which leads to the appearance of the Earth's magnetic field.

Magnetic fields occur in nature and can be created artificially. The man noticed them useful characteristics, which I learned to use in Everyday life. What is the source of the magnetic field?

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Earth's magnetic field

How the doctrine of the magnetic field developed

The magnetic properties of some substances were noticed in ancient times, but their study really began in medieval Europe. Using small steel needles, a scientist from France, Peregrine, discovered the intersection of magnetic force lines at certain points - the poles. Only three centuries later, guided by this discovery, Gilbert continued to study it and subsequently defended his hypothesis that the Earth has its own magnetic field.

The rapid development of the theory of magnetism began at the beginning of the 19th century, when Ampere discovered and described the influence of the electric field on the emergence of a magnetic field, and Faraday’s discovery of electromagnetic induction established an inverse relationship.

What is a magnetic field

A magnetic field manifests itself in a force effect on electric charges that are in motion, or on bodies that have a magnetic moment.

Magnetic field sources:

Conductors through which electric current passes;
Permanent magnets;
Changing electric field.

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Magnetic field sources

The root cause of the appearance of a magnetic field is identical for all sources: electrical microcharges - electrons, ions or protons - have their own magnetic moment or are in directional motion.

Important! Electric and magnetic fields mutually generate each other, changing over time. This relationship is determined by Maxwell's equations.

Characteristics of the magnetic field

The characteristics of the magnetic field are:

Magnetic flux, a scalar quantity that determines how many magnetic field lines pass through a given cross section. Denoted by the letter F. Calculated using the formula:

F = B x S x cos α,

where B is the magnetic induction vector, S is the section, α is the angle of inclination of the vector to the perpendicular drawn to the section plane. Unit of measurement – weber (Wb);

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Magnetic flux

The magnetic induction vector (B) shows the force acting on the charge carriers. It is directed towards the north pole, where a regular magnetic needle points. Magnetic induction is measured quantitatively in Tesla (T);
MF tension (N). Determined by the magnetic permeability of various media. In a vacuum, permeability is taken as unity. The direction of the tension vector coincides with the direction of magnetic induction. Unit of measurement – A/m.

How to represent a magnetic field

It is easy to see the manifestations of a magnetic field using the example of a permanent magnet. It has two poles and depending on the orientation the two magnets attract or repel. The magnetic field characterizes the processes occurring during this:

The MP is mathematically described as a vector field. It can be constructed by means of many vectors of magnetic induction B, each of which is directed towards the north pole of the compass needle and has a length depending on the magnetic force;
An alternative way of representing this is to use field lines. These lines never intersect, do not start or stop anywhere, forming closed loops. The MF lines are combined into areas with a more frequent location, where the magnetic field is the strongest.

Important! The density of the field lines indicates the strength of the magnetic field.

Although the MP cannot be seen in reality, the field lines can be easily visualized in the real world by placing iron filings in the MP. Each particle behaves like a tiny magnet with a north and south pole. The result is a pattern similar to lines of force. A person is not able to feel the impact of MP.

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Magnetic field lines

Magnetic field measurement

Since this is a vector quantity, there are two parameters for measuring MF: force and direction. The direction can be easily measured using a compass connected to the field. An example is a compass placed in the Earth's magnetic field.

Measuring other characteristics is much more difficult. Practical magnetometers did not appear until the 19th century. Most of them work by using the force that the electron feels as it moves along the MP.

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Magnetometer

Very precise measurement of small magnetic fields has become practically feasible since the discovery of giant magnetoresistance in layered materials in 1988. This discovery in fundamental physics was quickly applied to magnetic technology hard drive for storing data on computers, leading to a thousandfold increase in storage capacity in just a few years.

In generally accepted measurement systems, MP is measured in tests (T) or gauss (G). 1 T = 10000 Gs. Gauss is often used because Tesla is too large a field.

Interesting. A small magnet on a refrigerator creates a magnetic field equal to 0.001 Tesla, and the Earth's magnetic field on average is 0.00005 Tesla.

The nature of the magnetic field

Magnetism and magnetic fields are manifestations of electromagnetic force. There are two possible ways to organize an energy charge in motion and, therefore, a magnetic field.

The first is to connect the wire to a current source, an MF is formed around it.

Important! As the current (the number of charges in motion) increases, the MP increases proportionally. As you move away from the wire, the field decreases depending on the distance. This is described by Ampere's law.

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Ampere's law

Some materials that have higher magnetic permeability are capable of concentrating magnetic fields.

Since the magnetic field is a vector, it is necessary to determine its direction. For ordinary current flowing through a straight wire, the direction can be found using the right hand rule.

To use the rule, you need to imagine that the wire is wrapped around right hand, A thumb indicates the direction of the current. Then the four remaining fingers will show the direction of the magnetic induction vector around the conductor.

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Right hand rule

The second way to create a magnetic field is to use the fact that in some substances electrons appear that have their own magnetic moment. This is how permanent magnets work:

Although atoms often have many electrons, they mostly bond so that the total magnetic field of the pair cancels out. Two electrons paired in this way are said to have opposite spin. Therefore, in order to magnetize something, you need atoms that have one or more electrons with the same spin. For example, iron has four such electrons and is suitable for making magnets;
The billions of electrons found in atoms can be randomly oriented, and there will be no overall MF, no matter how many unpaired electrons the material has. It must be stable at low temperatures to provide an overall preferred orientation of electrons. High magnetic permeability causes the magnetization of such substances under certain conditions outside the influence of magnetic fields. These are ferromagnetic;
Other materials may exhibit magnetic properties in the presence of an external magnetic field. The external field serves to align all electron spins, which disappears after the MF is removed. These substances are paramagnetic. The metal of a refrigerator door is an example of a paramagnetic material.

Earth's magnetic field

The earth can be represented in the form of capacitor plates, the charge of which has the opposite sign: “minus” at the earth’s surface and “plus” in the ionosphere. Between them is atmospheric air as an insulating gasket. The giant capacitor maintains a constant charge due to the influence of the earth's MF. Using this knowledge, you can create a scheme for obtaining electrical energy from the Earth's magnetic field. True, the result will be low voltage values.

Have to take:

grounding device;
the wire;
Tesla transformer capable of generating high-frequency oscillations and creating a corona discharge, ionizing the air.

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Tesla Coil

The Tesla coil will act as an electron emitter. The entire structure is connected together, and to ensure a sufficient potential difference, the transformer must be raised to a considerable height. Thus, an electrical circuit will be created through which a small current will flow. Get a large number of electricity is not possible using this device.

Electricity and magnetism dominate many of the worlds around us, from the most fundamental processes in nature to cutting-edge electronic devices.

Video

The magnetic field has long raised many questions in humans, but even now remains a little-known phenomenon. Many scientists tried to study its characteristics and properties, because the benefits and potential of using the field were undeniable facts.

Let's look at everything in order. So, how does any magnetic field operate and form? That's right, from electric current. And current, according to physics textbooks, is a directional flow of charged particles, isn’t it? So, when a current passes through any conductor, a certain type of matter begins to act around it - a magnetic field. A magnetic field can be created by a current of charged particles or by the magnetic moments of electrons in atoms. Now this field and matter have energy, we see it in electromagnetic forces that can affect the current and its charges. The magnetic field begins to influence the flow of charged particles, and they change the initial direction of movement perpendicular to the field itself.

A magnetic field can also be called electrodynamic, because it is formed near moving particles and affects only moving particles. Well, it is dynamic due to the fact that it has a special structure in rotating bions in a region of space. An ordinary moving electric charge can make them rotate and move. Bions transmit any possible interactions in this region of space. Therefore, a moving charge attracts one pole of all bions and makes them rotate. Only he can bring them out of their state of rest, nothing else, because other forces will not be able to influence them.

IN electric field There are charged particles that move very quickly and can travel 300,000 km in just a second. Light has the same speed. A magnetic field cannot exist without an electric charge. This means that the particles are incredibly closely related to each other and exist in a common electromagnetic field. That is, if there are any changes in the magnetic field, then there will be changes in the electric one. This law is also reverse.

We talk a lot about the magnetic field here, but how can we imagine it? We cannot see it with our human naked eye. Moreover, due to the incredibly fast propagation of the field, we do not have time to detect it using various devices. But in order to study something, you need to have at least some idea about it. It is also often necessary to depict a magnetic field in diagrams. To make it easier to understand, conditional field lines are drawn. Where did they get them from? They were invented for a reason.

Let's try to see the magnetic field using small metal filings and an ordinary magnet. Let's pour these sawdust onto a flat surface and expose them to a magnetic field. Then we will see that they will move, rotate and line up in a pattern or pattern. The resulting image will show the approximate effect of forces in the magnetic field. All forces and, accordingly, lines of force are continuous and closed in this place.

A magnetic needle has similar characteristics and properties to a compass, and is used to determine the direction of lines of force. If it falls into the zone of action of a magnetic field, we can see the direction of action of the forces from its north pole. Then let us highlight several conclusions from here: the top of an ordinary permanent magnet, from which the lines of force emanate, is designated the north pole of the magnet. Whereas the south pole denotes the point where the forces are closed. Well, the lines of force inside the magnet are not highlighted in the diagram.

The magnetic field, its properties and characteristics have a fairly wide application, because in many problems it has to be taken into account and studied. This is the most important phenomenon in the science of physics. More complex things such as magnetic permeability and induction are inextricably linked with it. To explain all the reasons for the appearance of a magnetic field, we must rely on real scientific facts and confirmation. Otherwise in more complex tasks the wrong approach can destroy the integrity of the theory.

Now let's give examples. We all know our planet. Will you say that it has no magnetic field? You may be right, but scientists say that processes and interactions inside the Earth's core give rise to a huge magnetic field that stretches for thousands of kilometers. But in any magnetic field there must be its poles. And they exist, they are just located a little away from the geographic pole. How do we feel it? For example, birds have developed navigation abilities, and they navigate, in particular, by the magnetic field. So, with his help, the geese arrive safely in Lapland. Special navigation devices also use this phenomenon.