Electricity exists, not invented, and should be discovered. Franklin, an American scientist, got electricity from the kite experiment and accumulated it in a container now called Wright bottle, that is, many books say that a person put the key on the kite in a thunderstorm, and then connected the other end of the kite-pulling thread (ordinary cotton thread) to Wright bottle (a container with two metal sheets, which are close but not touching) to get the charge. Since then, electricity has been discovered and its existence has been proved.
Extended data
Electricity is a natural phenomenon, which refers to the phenomenon brought about by charge movement. Lightning in nature is an electrical phenomenon. Electricity is the property of repulsion and attraction between subatomic particles such as electrons and protons. It is one of the four basic interactions in nature. There are two kinds of electron motion phenomena: we say that atoms lacking electrons are positively charged and atoms with redundant electrons are negatively charged.
Electricity is a general term, which is a physical phenomenon caused by static charge or dynamic charge. In nature, the mechanism of electricity gives many well-known effects, such as lightning, triboelectrification, electrostatic induction, electromagnetic induction and so on.
To solve many different natural phenomena, the word "electricity" is generally enough. However, when used in the scientific field, the meaning of this term is rather vague. Clear terms are needed to distinguish different concepts.
Charge: the inherent property of some subatomic particles. This property determines the electromagnetic interaction between them. Charged matter will be influenced by external electromagnetic field, and it will also produce electromagnetic field.
Current: Directional motion of charged particles, usually measured in amperes.
Electric field: the effect produced by electric charge. Other charges nearby will also feel the electric field force because of this influence.
Potential: the potential energy of a unit charge at a certain position in an electrostatic field, usually expressed in volts.
Electromagnetic interaction: the basic interaction between electromagnetic field and static or moving charge.
The electrical effect in matter is the link between electricity and other physical disciplines (even non-physical disciplines). There are many kinds of electrical effects in matter, many of which have become or are gradually developing into specialized research fields. For example:
The study of various electrical effects is helpful to understand the structure of matter and the basic processes that occur in matter. In addition, technically, they are also the basis for energy conversion and non-electrical measurement.
References:
Baidu encyclopedia-electricity