What Is an Electric Field?

The electric field is a special substance existing in the space around the electric charge and the changing magnetic field. This kind of material is different from the usual real thing. Although it is not composed of molecular atoms, it is a special substance that exists objectively. It has properties such as force and energy.

A special media substance that interacts with the transferred charge that exists around the charged body. The interaction between charges is always carried out by an electric field.

Electric field: As long as a charge exists around it, there is an electric field. The electric field exists objectively. It has the characteristics of force and energy.

1. Powerful action on the charge placed in it.

2. It can cause the electrostatic induction phenomenon of the conductor placed in the electric field.

Simple electric field:

• Electric field formed by equal amounts of the same charge:

(1) On the line connecting two charges; whether it is the same positive or negative charge of the same amount, the field strength at the midpoint O is always zero.

(2) The mid-perpendicular line connecting the two charges; whether it is the same positive or negative charge of the same amount, from the midpoint O along the mid-vertical plane (mid-perpendicular line) to infinity, the field strength first increases and then changes small.

(3) The strengths of the two electric fields that are symmetrical about the O point are equal, the directions are opposite, and the potentials are equal.

• Electric field formed by equal amounts of heterogeneous charges:

(1) On the line connecting two charges, the direction of the electric field strength at each point changes from positive charge to negative charge, and the field strength along the direction of the electric field line first increases and then decreases, and the potential from positive charge to negative charge gradually decreases.

(2) The direction of the field strength on the mid-perpendicular line connecting the two charges is the same and perpendicular to the mid-perpendicular line. From the midpoint O to infinity, the field strength has been reduced and the potentials at each point are equal.

(3) The two electric fields on the mid-vertical line that are symmetrical about the midpoint O are in the same direction.

The electric field is the essential object of all physics, industry, chemistry, energy, electronics, information, biology and other disciplines:

1. Friction and elastic force are mainly contributed by electric field force.

2. Intermolecular forces are composed of electric field forces.

3. The power source of chemical reaction is electric field.

4. The current is caused by electric field forces.

5. Information technology also studies the characteristics of electric fields.

Conservative field

Conservative fields, electric field work has nothing to do with the path, but only to the beginning and end position.

Vortex electric field

When the magnetic field changes, the induced electromotive force generated by the coil has nothing to do with the type, shape, nature, and composition of the conductor. It is caused by the change of the magnetic field itself. Therefore Maxwell put forward the theory that "the changing magnetic field will excite an electric field in the surrounding space, and it is this electric field that causes induced electromotive force and induced current to be generated in the closed loop." Electric field .