Do you think that the motion of a person is related to the magnetic field 200

The human senses don't seem to be sensitive to magnetic fields, and we can't rely on the Earth's magnetic field alone to help determine where to walk, like dolphins and geese. Is it therefore possible to say that the movement of the human body has nothing to do with the magnetic field? This requires in-depth analysis; There are many times when you don't feel something, just because it doesn't really exist.

Without the guidance of the sun and stars, one cannot walk in a straight line. Scientists asked volunteers to stay in the Sahara Desert with water and food for a while to observe their walking. They can only walk in a straight line when there is sun; As soon as the sun hid behind the clouds, they began to aimlessly bypass the circle.

In the past, people liked to explain this phenomenon of walking in circles as the uneven force of people's legs. But scientists have a different view, because volunteers without a reference do not have a fixed bias towards clockwise or counterclockwise.

The research is being used to map how brain waves guide people to walk.

All macroscopic objects are made up of atoms, molecules, atoms have electrons and protons, and they are all electrically charged; In addition to the gravitational force, the motion of all objects is also affected by the electromagnetic field (force), and the human cells are also completely under the action of their own bioelectromagnetic field, for example: without brain waves, it is impossible for people to have any sense of the outside world. Without the bioelectromagnetic field, there can be no movement of the human limbs, and the electric field and the magnetic field are always inseparable twin sisters, electricity and magnetic fields are only the manifestations of electrical energy in different dimensions, and their essence is the same, just like the left and right sides of things, they must exist at the same time.

The movement of the human body is inseparable from the action of electromagnetic fields, in fact, all kinds of movements of the human body, from thinking to limbs, are governed by electromagnetic fields; However, due to the extremely high complexity of the human body, this mechanism of movement from the deep layers has not been able to establish an accurate mathematical model so far. Therefore, the human body has been waiting to be continuously revealed by science, but this does not affect our most basic understanding of human movement, at least at the qualitative level, we can get a positive answer.

At present, there are many kinds of electromagnetic instruments used for human diseases, and they can create phantoms by inputting electromagnetic waves of a specific frequency into the human brain, and can command certain actions of people with external electromagnetic waves. All these prove that electromagnetic fields are closely related to human movement.

No. People do not have organs that sense magnetic fields.

Summary. Hello, when the magnetic field moves relative to an object, an electric field, i.e., the phenomenon of electromagnetic induction, is generated. This is due to the relative motion that changes the relative position and velocity between the magnetic field and the object, resulting in a change in the magnetic field, which causes the generation of an electric field.

This phenomenon of electromagnetic induction is one of the foundations of Maxwell's equations. In contrast to this, objects at rest do not produce an electric field in a magnetic field as there is no relative motion between them and the magnetic field and the magnetic field does not change. The phenomenon of electromagnetic induction occurs only when the object is in relative motion.

The reason for this distinction is that the magnetic field is closely related to the electric field, and they are two sides of the same physical phenomenon. When the magnetic field changes, an electric field is generated; And when the electric field changes, a magnetic field is also generated. Therefore, it is only when the object is in relative motion that the magnetic field changes and an electric field can be generated.

You've done a great job! Can you elaborate on that?

Hello, when the magnetic field moves relative to an object, an electric field, i.e., the phenomenon of electromagnetic induction, is generated. This is due to the relative motion that changes the relative position and velocity between the magnetic field and the object, resulting in a change in the magnetic field, which causes the generation of an electric field. This phenomenon of electromagnetic induction is one of the foundations of Maxwell's equations.

In contrast to this, objects at rest do not produce an electric field in a magnetic field as there is no relative motion between them and the magnetic field and the magnetic field does not change. The phenomenon of electromagnetic induction occurs only when the object is in relative motion. The reason for the difference between the scumbags is that the magnetic field and the electric field are closely related, and they are two sides of the same physical phenomenon.

When the slippery magnetic field changes, an electric field will be generated; And when the electric field changes, a magnetic field is also generated. Therefore, it is only when the object is in relative motion that the magnetic field changes and an electric field can be generated.

The weakening of the magnetic field has a certain relationship with the state of motion. When a conductor moves in a magnetic field, due to the movement of the electric charge in the conductor, an induced electromotive force is generated, which in turn generates an induced current, which produces a reverse magnetic field that interacts with the original magnetic field, thereby weakening the strength of the original magnetic field.

According to Faraday's law of electromagnetic induction, the rate of change of magnetic flux is proportional to the induced electromotive force, and the faster the change of magnetic flux, the greater the induced electromotive force. When the conductor moves at a higher velocity, the rate of change of the magnetic flux will be larger, so the induced electromotive force will also be larger, resulting in the strengthening of the reverse magnetic field and the faster weakening of the original magnetic field.

Therefore, it can be said that there is a certain relationship between the weakening of the magnetic field and the state of motion, the faster the speed of movement, the more obvious the influence on the original magnetic field, and the faster the speed of the weakening of the magnetic field.

Reason: According to Maxwell's equations, a changing electric field produces a magnetic field. Motion is a change, so the electric field of motion produces a magnetic field.

There is an electric field in the space around the charge, and the motion of the charge causes the electric field to move, so the moving charge produces a magnetic field. Electric current is the flow of electric charges, so the electric current creates a magnetic field. A constant magnetic field is generated around a constant current.

A stationary electron has a stationary electron mass and a unit negative charge, so it exerts a gravitational force and a unit negative electric field force. When an external force accelerates and moves a stationary electron, the external force not only provides kinetic energy for the overall motion of the electron, but also provides magnetic energy for the magnetic field generated by the moving charge.

"A moving charge creates a magnetic field.

The essence of the electric field, of course, is not changing. There are two reasons: 1. There is no change in the electric field generated by the electric current (which is essentially a moving charge); 2. If the essence of "a moving charge produces a magnetic field" is a changing electric field, then there should be no current density in Maxwell's equations.

The essence of the "magnetic field" generated by a moving charge is not yet clear.

Yes, there is an active source in Maxleve's equation.

Detailed description, but since this involves complex vector operations, it will be difficult for you to understand if you only have a high school level and write the formula. The formula is.

The fourth in the form of differentiation.

What is said upstairs is completely wrong, because e and b are both vectors, and their variations involve not only size but also direction, so f'(t) In fact, it only represents a change in time and no change in space, and lacks the necessary physical meaning.

It is the electricity that changes.

The bai field produces a magnetic field du We know that a uniformly varying electric field produces a fixed DAO magnetic field, from which it is not difficult to guess.

If the inner e=f(t) then b=kf (t) k is a constant, and as for what allowing k is, you can theoretically deduce.

It can also be experimental. Don't tell me to push, I haven't touched physics for 4 years, and I have almost forgotten about electricity.

It seems that the main thing in the building is the formula, and the formula must contain the direction? I remember that the formula for gravitation doesn't have that meaning! What you say upstairs isn't necessarily true, right? At least not completely wrong!

The moving charge in the magnetic field is not necessarily subject to the force of the magnetic field, which in this case is the Lorentz force.

The Lorentz force can be expressed as:

Its size is equal to q*|v|*|b|*sinθ

Its direction can be determined using the left-hand rule. Left-handed rule: If yesaxb, with your left hand flat, so that your four fingers are pointingaThe direction in which the thumb perpendicular to the four fingers points to b is the direction in which it passes through the palmaxbdirection.

In the same way, let the four fingers represent the direction of the magnetic field, and the direction of the thumb perpendicular to the four fingers is the direction of positive charge motion, then the direction of passing through the palm is the direction of the Lorentz force.

withbparallel, one cannot be determinedfAsvxbdirection, sovxb(There is no direction, the magnitude is 0), and the Lorentz force is equal to 0.

So when the direction of the charge motion is parallel to the direction of the magnetic inductance line, the moving charge is not subject to the Lorentz force.

The influence of the magnetic field on the charge is mainly judged by the cosine value of the angle between the direction of the charge and the direction of the magnetic field.

If the charge moves in the direction of the magnetic field, the cosine of the angle is 0, and the charge is not affected by the magnetic field.

Not necessarily, if the direction of motion and the direction of the magnetic field are the same, the force is not affected.

Charge movement is generated.

Changing electric field.

The changing electric field produces a magnetic field. If the change in the electric field is uniform, the resulting magnetic field is stable, and if the change in the electric field is not uniform, the resulting magnetic field is changing.

The changing magnetic field produces an electric field. If the change in the magnetic field is uniform, the electric field produced is stable, and if the change in the magnetic field is not uniform, the electric field produced is changing.

No electric field is generated around a stable magnetic field, and no magnetic field is generated around a stable electric field.

God knows! Is the thrust greater than the grinding force? Why does the thrust force move when the grinding force is greater than the grinding force?

Why does it move when there is an external force? Why do you keep it in the same state without external force? Human beings, through long-term observation, have been determined to be the result of this phenomenon every time without exception.

The relationship between the electric field and the magnetic field is also a fact that has been observed for a long time.

The first thing to know is: the movement of the electric charge, which creates a changing electric field; A uniform change in the electric field is required to produce a magnetic field.

Therefore, the charge must move regularly in order to produce a regular electric field, and in this way produce a stable magnetic field.

The above can be understood as a relativistic effect:

For example, if there are two parallel wires at rest with the same wire charge density, they will produce a coulomb electrostatic force in the direction of the perpendicular wire.

Another example: these two wires move at a uniform speed in parallel directions, and their wire charge density is greater than in the stationary frame of reference, resulting in a greater Coulomb force. At the same time, the current generated by motion will produce a magnetic field, and this covariance is one of the most important properties of the electromagnetic field, which is the motivation proposed by the special theory of relativity.

various substances differ widely in their magnetic characte.

The magnetic properties of various substances vary greatly.

Ways to learn physics well:

1. Have an interest in physics. Physics is a very abstract subject, and many people don't like physics because it is difficult and abstract, especially for those liberal arts students, or students who are partial to the subject, and they hate the course of physics.

If you don't have interest, you will definitely not be able to learn specific courses, this is undoubted, so interest is the best teacher, if you want to learn physics well, you must be lenient to cultivate interest in the subject of physics.

2. Be good at observation. Physics is a discipline with strong regularity, and when you encounter the same knowledge points and the same type of questions, as long as you do it once, the next time you encounter a similar problem.

You won't be afraid, because you have observed the rules and mysteries in it, and you know that this is the same type of problem, so you are fully capable of taking this question, so you are not in a hurry. Because this is the type of question that has been seen, that is, a pair of observant eyes help you.

3. Learn to think more. When you encounter specific test questions, you know to find out the beneficial knowledge from the question stem, you know which formulas to use to answer the questions, and you also know that the test center of this question is in**.

Ways to learn English well

1. If you want to learn English well, you must first refine your listening. The environment is very important, choose to listen more and watch more in normal times, such as watching more English movies, listening more to English listening, and improving listening.

2. The second is to cultivate one's own sense of language. This requires us to talk more on the basis of listening. If conditions permit, we can make more foreign friends, insist on communicating in English, and create a good language environment.

If you can't, you can participate in more training, such as English corners, to create conditions for yourself. Language is used to communicate, and it is more important to learn English well.

3. Then it is to enrich your vocabulary. Words are a key part of learning English, and English is made up of individual words and vocabulary.