How to identify the magnitude of the magnetic field and what is the magnitude of the geomagnetic fie

A senior electrician explains what the right-hand spiral theorem is.

horizontal componentsThe value is the largest near the equator, about milliters [sla], and gradually decreases from the equator to the poles, and the two poles are zero.

Geomagnetic field. The horizontal component is the magnetic field strength of the geomagnetic field.

The component in its horizontal direction is one of the three elements of the geomagnetic field. It is usually denoted by H. The component in the straight direction of the lead is called plumb strength and is usually denoted by the symbol h.

If the geomagnetic field of a certain place is called h, then: h = hcos , h = hsin, where is the magnetic inclination of the place.

Like turtles, whales.

Migratory birds, among many other migratory animals, can travel thousands of kilometers a year, often passing through the vast ocean on the way, but can also determine the precise location. Scientists have found that sea turtles can pass through the Earth's magnetic field.

and the position of the sun and other stars to discern the direction.

But for migrating sea turtles, it's not enough to have a sense of direction, they may also have a "map" that can be used to determine where they are and eventually reach a specific destination. University of North Carolina, USA.

The Kenloman team at Chapel Hill found that green sea turtles.

They are very "sensitive" to the differences in the strength and direction of the geomagnetic field between different geographical locations, and they can draw a map of themselves through the geomagnetic field.

Magnetic field magnitude formula: h=n i le. Magnetic field, a physical concept, refers to the field that transmits the magnetic force between physical objects.

Magnetic field is a special substance that Zheng Pai cannot see or touch. A magnetic field is not made up of atoms or molecules, but a magnetic field exists objectively. The magnetic field has the radiative properties of wave particles.

Magneticforce is the force of a magnetic field on a magnet and an electric current placed in it. Magnetism is an electromagnetic field.

The speed of propagation, the speed of electromagnetic field is the speed of light, and the speed of magnetic action is also the speed of light. Since its nature is not yet known, it is still unknown whether a magnetic black hole exists, and no sufficiently strong magnetic field has been observed. And if the magnetic force cannot bend space-time, it will not form a magnetic black hole.

A person's magnetic field manifests itself when he speaks to people. A person with a strong magnetic field will give people a very approachable feeling, but when you come into contact with him, you feel that this man has a sense of distance and is very difficult to contact, generally speaking, this kind of person is a successful person, people at the bottom of the society do not have this feeling, we often see some company CEOs on TV, they give people such a feeling.

A person's magnetic field is also manifested in his usual style of doing things. A person without a magnetic field, he may be very arrogant when he does things, never think about the consequences, as long as he finishes this thing, but Xiyun sedan is a person with a strong magnetic field, he will take into account all aspects when doing things, will think about whether his employees are dissatisfied with this matter, will think about whether his leaders will agree to do this, and try to make others satisfied.

A person's magnetic field is also manifested in the friends around him. For example, if there is a couple, when they just hold each other quietly, you may think that the two of them are not a good match, but after they have been together for a long time, you will feel that the two of them are more and more like the two of them are the same as they walk, and even the way they speak are exactly the same.

A person's magnetic field is also manifested in terms of his character. An extroverted and cheerful person has a very large magnetic field, and he can attract the attention of others, but an introvert is always afraid that others will notice him, and he never shows himself in public, so the magnetic field of such a person is relatively small.

In a vacuum, a circular coil of radius r is passed through an electric current i, and the magnitude of the magnetic induction generated at its center is i (2r), and the magnetic moment of the coil is i r 2.

Magnetic induction strength refers to the physical quantity that describes the strength and direction of the magnetic field, which is a vector quantity, commonly represented by the symbol b, and the international common unit is Tesla (symbol t). Magnetic induction intensity is also known as magnetic flux density or magnetic flux density. In physics, the strength of a magnetic field is expressed in terms of the intensity of magnetic induction, and the greater the intensity of magnetic induction, the stronger the magnetic induction.

The smaller the intensity of the magnetic induction, the weaker the magnetic induction.

A magnetic moment is a physical quantity that describes the magnetism of a current-carrying coil or microscopic particle. The magnetic moment of a circular current-carrying coil is defined as m=i r 2. where i is the current intensity; r 2 is the coil area.

Expand the information of hail filial piety:

The electric field force that the charge is voided in the electric field is constant, and the direction is the same or opposite to the direction of the electric field at that point. The magnetic field force exerted by the current somewhere in the magnetic field (ampere force hall blindness) is related to the direction in which the current is placed in the magnetic field, when the direction of the current is parallel to the direction of the magnetic field, the ampere force of the current is the smallest, equal to zero; When the direction of the current is perpendicular to the direction of the magnetic field, the ampere force on the current is maximum.

In a uniform external magnetic field, the resultant force of the planar current-carrying coil is zero and the torque is not zero, which causes the magnetic moment m of the coil to turn in the same direction as the direction of the external magnetic field b. In a uniformly radially distributed external magnetic field, the current-carrying coil is deflected by a torque.

The geomagnetic field is not fixed. The magnitude of the geomagnetic field refers to the strength of the geomagnetic field, and it is also the magnetic induction intensity b, which is a vector quantity that can be expressed in Tesla (t) as a unit. The magnitude of the geomagnetic field is different in different places on the earth's surface, generally speaking, it is the largest near the equator, about millitesla (mt), and the value gradually decreases from the equator to the poles, and the poles are zero.

The magnitude of the geomagnetic field can be measured and described in different ways, and the constants are used in the following ways:

1. Use a compass to measure the direction of the geomagnetic field on the horizontal plane, that is, the magnetic angle d, which is the angle between the horizontal component h of the geomagnetic field and the north direction of geography.

2. Use an inclinometer to measure the angle between the geomagnetic field and the horizontal plane, that is, the magnetic inclination angle i, which is the angle between the total strength of the geomagnetic field t and the horizontal plane.

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In the method of exploration, the earth's basic magnetic field and continental magnetic field are called normal magnetic fields. Normal magnetic fields and magnetic anomalies are relative. The Earth's magnetic field has the following parts:

The basic magnetic field that is distributed according to a certain law is the dipole field. The continental magnetic field related to the distribution of continents, the local magnetic field related to geological structures and minerals, and the magnetic field that varies over time.

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 can act without contact.

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.

Harm of electromagnetic radiation to the human body:

1. It can lead to intellectual disability in children. According to the latest survey, 350,000 of the 20 million children born in China each year are defective escort children, of whom 250,000 are mentally handicapped.

Some experts believe that electromagnetic radiation is also one of the influencing factors.

2. This is likely to be one of the causes of childhood leukemia.

Medical research has shown that long-term exposure to high levels of electromagnetic radiation can cause changes in the blood, namely lymphatic and cellular protoplasts.

3. It can induce cancer and accelerate the proliferation of cancer cells in the body. <>