How much is the static electricity that allows the finger to hit the electric spark?

In daily life, we often talk to the electrostatic: When combing hair, the hair sometimes "floats" inexplicably, the more rational, the more chaotic, and the sound of crackling.

When I touched the handle, my fingers suddenly felt acupunctured pain in my fingertips.

In winter, I wanted to wear beautiful skirts, but I found all sticking to my legs.

Since electrostatic is everywhere, what is static electricity?

How is static electricity generated?

As we all know, atoms are the foundation of all things in the world. It is composed of electronics, neutrons, and protons, and the production of static electricity is related to the "electron" in it.

Electronics is a basic particle that constitutes things. Its quality is very small and has a certain charge. There are only two types of charge in nature: positive charge and negative charge. The same type of charge attracted each other, and the alien charge was mutually rejected.

When the charge is gathered on the surface of an object, static electricity will be formed. Because the charge is divided into positive and negative charges, the electrostatic is also divided into positive and negative static electricity: When the positive charge is gathered on a certain object, positive electrostatic is formed. When the negative charge is concentrated on a certain object, negative static electricity is formed. However, whether it is positive electrostatic or negative static electricity, when a static electrical object is exposed to zero potentiometer or objects with different potentials, charge transfer will occur, and the static electricity that we always see in our daily life will occur.

The electrostatic generated on the conductive body disappears because it can quickly flow, but on some insulators, they will maintain a relatively static static. When it reaches a certain degree, discharge phenomena will be generated, usually accompanied by noise and spark. Back to the beginning of the article, how does the static ball work? It turns out that the metal ball comes with a large amount of charge. When a person stands on the insulated platform and is in contact with the hand, the body will bring the same type of charge on the body. Due to the exclusive effect of the same charge, each hair is between each hair. It has also been rejected, which has formed the phenomenon of "anger and rushing crown".

Danger of static electricity

Although the electrostatic is small, sometimes the power is great. In late autumn and winter and spring seasons, the electrostatic voltage generated by people when walking on a blanket can exceed 3,000 volts; when people take off pure polyester clothes, they can instantly generate a high voltage of 50,000 to 100,000 volts; Suddenly, when the friction and contact between the clothes and the sofa cushion are separated, the electrostatic voltage of the human body can be as high as more than 10,000 volt. When the static voltage reaches 2000 volts, the fingers will feel; when it exceeds 3,000 volts, there will be sparks and the finger will have a tingling sensation; when it exceeds 7000 volts, people will have a sense of shock. Although the voltage of static electrostatic looks high, because its power is small, the corresponding current during discharge is small, so it generally does not cause direct damage to the human body.

However, everything has two sides. Don't look at the static electricity like humans and animals, but in fact, it is the fuse of some accidents. In 1969, a number of fuel tankers exploded due to static electricity; in 1970, two "Boeing" aircraft exploded due to oil static electricity; Cases that lead to major casualties. In daily life, accidents on static electricity are everywhere.

In addition, experts also remind everyone that the harm of static electricity to the human body cannot be ignored, especially the elderly and patients. Static electricity will increase their condition. Excessive static electricity often makes people restless, headache, chest tightness, and difficulty breathing. , Cough and so on.

Since the electrostatic is so dangerous, is there any way to prevent static harm? In life, we can eliminate the distress of electrostatic through the humidifier. In the room, the air humidifier is used to increase the air humidity, which can effectively eliminate static electricity. If you are outdoors, you can touch the wall with your hand before contacting the metal object and transmit the static electrostatic on the body to the earth, which can effectively alleviate the harm caused by electrical electricity.

For industrial production, it is more important to prevent static electricity. Whether it is a neutral electrostatic or grounding diversion, or let it dissipate by itself, the most important thing is to strengthen the awareness of prevention and ensure the guarantee of all links to effectively prevent the occurrence of danger.

Electricity

Static electricity is not useless, as long as it is used in the right place, it can still exert its own value. The electrostatic dust collector is to adsorb the dust particles in the gas to remove the dust in the gas, so as to remove it. The electro -electrostatic copy and printing technology uses the electrostatic submarine shadow reserved during the charge. After a certain way, the copy and printing are implemented.

Electricity can be used for water purification. The quality of material conductivity is directly related to the amount of free charge it contains, but the distilled pure water is almost non -conductive. Provided by other substances dissolved in water, and this substance, that is, inorganic salts. The conductivity of the seawater is stronger than that of ordinary water, precisely because of the high content of inorganic salts. Based on this characteristic, scientists invented the electrostatic leakage method, using ion exchange membranes and electrostatic, and leak out the inorganic salts contained in the water in the water to obtain pure water.

In addition, the static printing technology based on the principle of electrostatic imaging can make the charges arranged in order as static electric submissions, precipitates in the surface or body of the material, and then see the form that can be seen through the appearance and transfer of adult eyes. This technology is also very common in daily life.

These various technologies, they all reflect the effective application of static electricity in life in different aspects.So far, the exploration of static electricity has gradually developed into a science -static electrical science, which has witnessed the progress of human civilization, and is also playing its own role for human beings to better live.

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