How electricity is generated and how electricity is generated

It is the voltage that causes the charge in the conductor to move directionally, which was originally moving very chaotically. But the speed of movement of electrons is not the speed of movement of electric current.

The speed of movement of electric current is very fast, the same as the speed of light. But are electrons moving just as fast? The answer is no.

The speed of electrons in a vacuum tube is quite fast, with a voltage of 100 volts, electrons can travel about 6,000 kilometers per second, but it is still far below the speed of light of 300,000 kilometers per second. The overall velocity of the electrons is only 1 millimeter per second when a current of 150 amps per square centimeter cross-section of the wire flows. But how can an electron moving so slowly form an electric current moving at the speed of light?

Although the speed of movement of electrons is slow, the command to transmit motion can be considered to be transmitted from one electron to another electron at the speed of light. Of course, the electrons dispatch as soon as they receive a command, and they also issue a command at the same time as they are dispatched, and the current formed by such a "change" is roughly transmitted at the speed of light.

Friction The chemical reaction of the substances in the battery (chemical energy - electrical energy) The internal and external forces of the power plant push the motor to do the cutting of magnetic inductance lines (kinetic energy - electrical energy) Electricity is generated by the directional motion of electric charge.

In fact, the production of electricity is just the transfer of electrons.

So electricity is produced by the movement of electric charges.

Regardless of the method used, it is ...... whether it is a chemical method or a magnetic methodA chemical reaction, friction can also be.

A chemical reaction, friction can also be.

Electricity is produced by the directional movement of charged particles.

Electricity is divided into static electricity, alternating current and direct current. Static electricity, such as glass rods rubbing cat skin, plastic combs combing hair, etc., the most intense type is thunder, which is generated by the collision of the yang or yin charge in the sky and the yin or yang charge on the ground. Alternating current is the electrical energy generated by cutting magnetic field lines with mechanical energy, and direct current is divided into electrical energy directly converted from chemical energy, such as batteries.

The other is to change the alternating current through rectification. In terms of alternating current, electricity is the directional flow of a large number of electrons, and direct current is also the directional movement of a large number of electrons. Physically, the direction of the current is just the opposite direction of the flow of electrons.

Then static electricity is a direct collision of positive and negative charges.

The above is basically correct, but the phenomenon of electricity was discovered by Benjamin Franklin.

Electricity is generated by the directional motion of electric charges.

In fact, the production of electricity is just the transfer of electrons.

So electricity is produced by the movement of electric charges.

Regardless of the method used, it is ...... whether it is a chemical method or a magnetic method

Electricity is a physical phenomenon produced by a stationary or moving electric charge.

In real life, the mechanism of electricity gives many well-known effects, such as lightning, triboelectric induction, electrostatic induction, electromagnetic induction, and so on.

According to ancient Egyptian books written in 2750 BC, these fish were known as the "thunder messengers of the Nile" and were the protectors of all other fish. It was about 2,500 years later that the Greeks, Romans, Arab naturalists and Arab physicians began to write about the fish.

Electricity is a property of the repulsive force and attraction that arises between subatomic particles like electrons and protons. It is one of the four basic interactions in nature.

The discovery and application of electricity has greatly saved human physical and mental labor, made human strength grow wings, and extended human information tentacles. The impact of electricity on human life is twofold: the acquisition, transformation and transmission of energy, and the basis of electronic information technology.

The discovery of electricity can be said to be a revolution in human history, the kinetic energy generated by it is continuously released every day, and people's demand for electricity is exaggerated to say that its role is no less than that of oxygen in the human world, if there is no electricity, human civilization will still explore in the dark.

Electricity is a natural phenomenon that refers to the transport of electric charges.

The phenomenon brought about by the movement is the lightning of nature.

It is a phenomenon of electricity. It's like electrons and protons.

Repulsion between such subatomic particles.

A property of force and attraction. It is natural.

One of the four basic interactions of the world.

There are two kinds of electronic motion phenomena: we.

Atoms lacking electrons are said to be positively charged, and atoms with excess electrons are said to be negatively charged.

Electricity is produced by a stationary or moving electric charge.

Raw physical phenomena. In real life, electricity.

gives a lot of well-known effects.

For example, lightning, triboelectric activation, electrostatic induction.

electromagnetic induction and so on.

Electricity is generated using magnets and coils.

To generate electricity, you need magnets and coils that generate electricity. The magnet has a magnetic force that attracts metals such as iron, and the range of this force is called a magnetic field. When the coil is moved in this magnetic field, electricity is generated in the coil.

However, in a strong magnetic field, electricity cannot be generated without being able to move the coil (without making a change in the magnetic force).

In other words, the change in magnetic force causes the coil to generate electricity. This principle is called electromagnetic induction, and the current generated is called induced current. As the magnet approaches the coil, the current flows towards the coil in the direction of the arrow.

If the magnet moves away from the coil, the current flows in the opposite direction of the arrow.

Of course, if you don't move the magnet, the magnetic field will not change, and electricity will not be generated. This electromagnetic induction can also be used in a simple generator of a bicycle. If a generator is installed on the tires of a bicycle, the magnets inside the generator will rotate with the help of the rotation of the tires.

In this case, the strength of the magnetic field near the coil changes, and an induced current flows to the coil. This is how electricity is generated, which turns on the lights of the bike.

The discovery process of electricity

In 1732, the American scientist Benjamin Franklin believed that electricity was a weightless fluid, and that the difference lies in all objects. When an object receives more electricity than normal, it is said to be positively charged; If it is less than the normal amount, it is called negatively charged, and the so-called "discharge" is the process of positive current to negative electricity (artificially prescribed), this theory is not entirely correct, but the names of positive electricity and negative electricity are retained.

In 1752, Benjamin Franklin proposed the kite experiment, in which other scientists put a metal wire on the key into the clouds, and the rain-soaked metal wire led the lightning in the air between the finger and the key, proving that the lightning in the air is the same thing as the electricity on the ground. Later, based on this principle, he invented the lightning rod.

Benjamin Franklin had others do a number of experiments that further revealed the nature of electricity and came up with the term electric current. Another of Franklin's major contributions to electricity was to prove that lightning in the sky and electricity on the ground were the same thing by designing the famous kite-like experiment in 1752, "Capture the Celestial Lightning."

Electricity is mainly generated by generators.

The power plant converts various primary energy or renewable energy sources such as thermal energy, hydro energy, nuclear energy, and wind energy into electrical energy through power generation equipment, and turns it into high-voltage electricity through a step-up substation, which is transmitted to the destination by the transmission line, and then reduced to a specified level by the step-down substation, and then sent to thousands of households.

This process needs to be realized by a transformer, which is a device that uses the principle of electromagnetic induction to convert the alternating current energy of one voltage into alternating current energy of another voltage of the same frequency, thereby changing the alternating voltage.

Different energy sources generate electricity:

1.Thermal. The use of energy contained in fossil fuels such as coal, oil, and natural gas to generate electricity is collectively referred to as thermal power generation. According to the mode of power generation, thermal power generation is divided into coal-fired steam turbine power generation, oil-fired steam turbine power generation, gas-steam combined cycle power generation and internal combustion engine power generation.

2.Hydropower. Hydropower is a comprehensive engineering facility that converts hydropower into electrical energy, generally including reservoirs and hydropower station water diversion systems, power generation plants, mechanical and electrical equipment, etc., formed by water retaining and discharging buildings.

The high-water level water from the reservoir flows into the plant through the water diversion system to drive the hydro-generator sets to generate electricity, and then feed it into the power grid through step-up transformers, switching stations and transmission lines.

3.Wind power. Wind power is the use of wind power to drive the windmill blades to rotate, and then increase the speed of rotation through a speed increaser to promote the generator to generate electricity. With current windmill technology, a breeze speed of about three kilometers per second (the degree of the breeze) is enough to start generating electricity.

4.Nuclear power. A nuclear power plant is a new type of power station that uses the energy contained in the nucleus of an atom to generate electricity.

Nuclear power plants can be roughly divided into two parts: one is a nuclear island that uses nuclear energy to produce steam, including a reactor unit and a primary circuit system; The other part is the conventional island that uses steam to generate electricity, including a steam turbine generator system.

Electricity is generally generated by the electromagnetic principle in physics, that is, magnets and coils, in life, it is completed by power plants, it is the mutual conversion of physical work, and chemical energy, that is, the transfer of electrons to produce electricity (such as batteries).

Electricity is a physical phenomenon produced by a stationary or moving electric charge. In real life, the mechanism and characteristics of electricity have given many familiar effects, such as lightning in nature, frictional electrification of glass rods, electrostatic induction, electromagnetic induction, and so on.

Electricity is generally generated by the electromagnetic principle in physics, that is, magnets and coils, in life, it is completed by power plants, it is the mutual conversion of physical work, and chemical energy, that is, the transfer of electrons to produce electricity (such as batteries). Other common types of power generation include photovoltaic power generation (photovoltaic plants), hydroelectric power generation (Three Gorges Dam), wind power generation (wind power generators), thermal power generation (general power plants), and nuclear power generation (nuclear power plants).

The discovery of electricity is undoubtedly the best invention for the benefit of mankind, which can be equated with the importance of oxygen to mankind, and is a great revolution in human history, so that human civilization has plugged in the wings of Qingchuan soaring in the blue sky.

Explanation of terms about electricity

Electron: In an atom, the negatively charged particle that surrounds the outer nucleus of an atom is called an electron.

Electrics circuit: A current channel composed of power supplies, electrical appliances, wires, etc., which is divided into closed circuits and open circuits. A closed circuit that is not loaded is called a short circuit.

There are two basic forms of connection methods for electronic components in circuits: series and parallel.

Voltage: Also known as potential difference, it is the potential for electrons to flow through a wire, and if work must be done on the electric field to move a charge from one point to another, it is said that there is a voltage (potential difference) between the two points.

Current: is the movement of an electric charge, usually measured in ampere. Any moving charged particle can form an electric current.

Electric charge: It is the amount of electron load, the source of the electric field. When a net shift occurs in a positive charge, an electric current is constituted in the direction of its movement.

Electric resistance: The amount of current that limits the amount of current in a circuit, also known as the resistance of the current.

Impedance: A measure of the ability to limit current in an AC circuit in a much similar way to the resistance used in a DC circuit. Defined as voltage divided by current.

Electric power: Defined as the work done per unit of time. Since the wire does not accumulate charge, the same amount of charge must pass through the resistance of the battery in a closed circuit.