uses of static electricity - car air purifier

We have all experienced static electricity in one way or another.
When we touch the door handle or other metal objects, we are subjected to unexpected small shocks that stick to the wall after the head is rubbed, or the hair is straight as soon as it is close, it's all generated by static electricity.
All of this is common in our daily life and looks interesting at most, but is there any practical use of static electricity?
Or is it just an interesting but useless electronic phenomenon?
What is static?
Static electricity is generated when any material gets or loses electrons and becomes positive (
When it loses its electrons)
Or with negative electricity (
When it gets an electron).
The actual charge is called static electricity.
It is called static because the charge does not move from where they are produced, unlike the electricity flowing from one pole of the battery or power supply to the other.
Most of the time, when two objects touch or rub together, it will produce.
In order for the static to remain in the object, it must have a high resistance to the current.
That's why plastic balloons and hair are still charged and they are bad electrical conductors.
Other materials like aluminum can get electrostatic charges, but because of its low resistance to the flow of electrons, it will dissipate quickly.
The actual use of electrostatic properties the ability of opposite charges in static electricity is used when designing applications for static electricity.
Dust removal: there are some electrical appliances that can eliminate dust in the air, such as air purifiers.
They use static electricity to change the charge in the dust particles in order to stick to the board or filter of the purifier opposite to the dust charge (
The opposite charges attract each other).
This effect is also used in industrial chimneys to reduce the pollution they produce, and although they work in a very large range, the effect is basically the same as that of household air purifiers.
Copy: the copier uses static electricity to make the ink attractive to the area where we need to copy the information.
It only uses ink in areas where the paper to be copied is darker (
Usually this means text or other information)
The process is called copying, not where the paper is white.
Car painting: to ensure that the paint of the car is uniform, and to protect the metal interior of the car, it will resist high speed and weather and charge with static electricity.
The metal body of the car is submerged in a substance that gives it positive electricity, and the paint is negatively charged by the paint sprayer.
This process ensures a uniform layer of paint, because when there is enough negative paint in the car, the extra paint is repelled by the paint that already exists in the car.
It also ensures that the paint does not fall off because the electrical attraction between the paint and the car is stronger than the one just sprayed.
All of these processes use electronic circuits to generate and control the static electricity generated.
If you are interested in power and Electronics, please check out my website for beginner electronic circuits, where you will find simple circuits to get you started and when you have learned enough, you can build your own practical electrostatic circuit for your own use!
Electricity supply?
Many people want to know whether static electricity can be used as a power source for home and industry.
Although static electricity can produce extremely high voltage (
Tens of thousands of volts, compared to 110 volts for a normal power outlet)
The current it can produce is very low, from micro-Ann to several milliamperes (
AMPs are units of current)
Only a short time.
Lightning can generate considerable energy, but the high voltage, current, temperature and speed of the discharge make it extremely difficult and inefficient to use or store.
Storing electricity is so inefficient that the power plant will only sell extra energy at a lower price or leave it idle and lost, instead of storing it because of the cost and the amount of energy, it is not enough to offset the expenses.