Charge, Electric Field Problem 15, Charge, Electric Field Problem

1.It is not that the charge is relatively dense, but that the electric field lines are dense, because the direction of the electric field lines is perpendicular to the surface of the conductor, and the direction of the electric field changes quickly in the place where the protrusion occurs, so the lines are many and dense, and the electric field is strong.

2.Because the conductor in the electric field is an equipotential body and there is no electric field inside, the vector sum of the original attached electric field inside the conductor is 0, that is, the magnitude is the same and the direction is opposite.

1.Dense electric field lines are dense electric charges. The electric field strength of the conductor surface is directly proportional to the surface charge density.

This can be deduced from the fact that the internal field strength of the conductor is 0 everywhere, and the derivation is quite annoying. Intuitively imagine that a conductor is large at one end and small at the other, the area of the large end is relatively large, and the natural charge surface density should be relatively good, and the small section of the area is small, the charge surface density is relatively large, so as to reasonably ensure that the field strength in the middle is 0.

2.If the magnitude is not the same, the direction is opposite, the internal field strength of the conductor is not 0, and the electrons in the conductor can continue to move, it is not an electrostatic field. This process is balanced until the size is consistent and the direction is reversed.

1.This is the principle of tip discharge, do you know the lightning rod, it is to use this principle A large amount of positive electricity can accumulate on the tip of the needle, so as to lead the negatively charged lightning to hit it Under the action of the electric field, near the place where the curvature of the object is large (such as sharp, small top, and very bent place), the electric field strength will increase dramatically if the equipotential plane is dense

2.The induction is all negative electrons, which you should have learned in middle school, it is against the direction of the electric field lines, and if you draw a diagram, you will see it at a glance

Physics can sometimes feel unimaginable, but when you think about it quietly, it is so "reasonable".

Answer: As long as there is an electric charge, there must be an electric field.

An electric field is a special substance present around an electric charge, and its property is to act on the charge placed in it to produce a force. The strength of the electric field around the point charge in a vacuum e=kq r 2, the direction starts from the positive charge and ends at infinity; or starts at infinity and ends with a negative charge.

Having an electric charge does not necessarily have an electric field force. For example, a battery has an electric charge, but it does not necessarily have an electric field force.

There is an electric field in the vicinity of the charge, and other charges in the vicinity of this charge are subjected to the electric field force of this charge.

Because of the law of conservation of energy, the electric field force does positive work, the positive charge decreases from high potential to low potential to positive work, and the corresponding negative charge decreases from low potential to high potential, and the electric potential energy also decreases, so the electric potential energy is reduced.

Energy is neither created nor disappeared out of thin air, it simply transforms from one form to another, or from one object to another, while the total amount of energy remains the same. The law of conservation of energy is one of the universal fundamental laws of nature.

Summary. An electric field is a special substance that exists in the space around an electric charge and a changing magnetic field. The electric field is different from the usual physical object, it is not composed of molecular atoms, but it exists objectively, and the electric field has objective properties such as force and energy that ordinary matter has.

Why is an electric charge capable of producing an electric field, and how does an electric charge produce an electric field? What is the nature of electric fields?

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The electric field is a special substance that does not exist objectively due to the subjective consciousness of the person. I believe that the charge placed in a certain space will inevitably change the distribution structure of the surrounding matter, and have a fixed effect on the parts that can be affected in the space, which will change the original spatial trend of the nuclear slag, so that the charge placed in the field will obtain a tendency of relative motion or energy change, that is, the electric field will be generated.

A large number of experimental facts show that the interaction between electric charges is propagated by a field (and an old rather than an over-distance action), which is defined as an electric field. The achievements of modern physics have further affirmed that there is an electric field around the charge, and the electric field between the charges is transmitted and interacted with each other through the electric field of the collapsed tent.

There is a special substance around the electric charge, that is to say, a modified electric nuclear destruction field generated by it, and the force exerted on other charges in the electric field is given by this electric field.

The electric field is a special substance in which the electric charge and the space around the changing magnetic field are accompanied by Zheng Licun. The electric field is different from ordinary physical objects, it is not composed of molecular atoms, but it exists objectively, and the electric field has objective properties such as force and energy that ordinary matter has.

Summary. Hello dear, happy to answer your <>

Why is an electric charge capable of producing an electric field, and how does an electric charge produce an electric field? The essence of the electric field is: the electric charge energy produces the electric field because it has an electromotive force, which is the electric potential energy called in electrodynamics.

An electric field is a physical field that describes the interaction between charged particles, representing the effect of the electric potential energy at that location on the arrangement of charges, thus determining the direction and speed of their motion. The essence of an electric field is an energy field that describes the distribution of electric potential energy.

Why is an electric charge capable of producing an electric field, and how does an electric charge produce an electric field? What is the nature of electric fields?

Hello dear, happy to answer your <>

Why is an electric charge capable of producing an electric field, and how does an electric charge produce an electric field? The essence of the electric field is: the electric charge energy produces the electric field because it has an electromotive force, which is the electric potential energy called in electrodynamics.

An electric field is a physical field that describes the interaction between charged particles, representing the effect of the electric potential energy at that location on the arrangement of charges, thus determining the direction and speed of their motion. The essence of an electric field is an energy field that describes the distribution of electric potential energy.

Charge refers to charged particles in matter, which can be either positive or negative. The magnitude of the charge depends on the amount of charge of the particle and is indivisible. The presence of electric charges leads to electromagnetic interactions in matter, which is the fundamental cause of electromagnetic phenomena.

If the electric charge is very strong at a certain point in the early electric field of the stool oak, the field strength e at that point must be very large.

a.That's right. b.Wrong jujube finch mistake.

Correct answer: B