Who invented alternating current, and why did direct current be invented when there is alternating c

Tesla invented alternating current, because the technical applications of alternating current and direct current have their own merits, just like there is a ** and Jingdong have the same reason.

It was alternating current invented by Tesla, because direct current was invented before alternating current, and the characteristics of alternating current itself are very different from direct current, so alternating current has its necessity.

The inventor of alternating current was Nikola Tesla. Direct current appeared before alternating current, because it could not be transformed, and the loss during transmission was serious, so after the invention of alternating current, direct current was rarely used.

Nikola Tesla invented alternating current. Alternating current facilitates long-distance transmission and voltage transformation. But direct current also has advantages, its line cost and its transportation cost is low. It consumes less power and is more stable than alternating current.

Alternating current is Michael Faraday.

In 1831, Faraday first discovered the phenomenon of electromagnetic induction, which led to the method of generating alternating current, and later generations called him the "father of electricity" and "the father of alternating current".

Michael Faraday Achievement:

1. Michael Faraday was the inventor of the generator and the electric motor.

2. On October 28, 1831, Faraday invented the disc generator, which was the first generator created by man.

3. Faraday puts the magnetic field lines.

and the important concepts of power lines were introduced into physics, opening the way for contemporary nuclear physics by emphasizing not the magnets themselves but the "fields" between them.

4. Faraday Patrick established the concept of "the change of the magnetic field produces the electric field".

5. Faraday discovered the law of electrolysis.

And promote many professional terms, such as anode, yin digging, electrode and ion.

Alternating current isNikola TeslaInvented.

Michael Faraday.

He was a student and assistant of the famous British chemist Davy, whose discoveries laid the foundation for the simplification of electromagnetism.

The foundation is Maxwell.

The precursor. On October 17, 1831, Faraday discovered the phenomenon of electromagnetic induction for the first time.

And then obtain a method for generating alternating current. On October 28, 1831, Faraday invented the disc generator, which was the first generator ever created.

He connects the wire to a chemical cell to make it electrically conductive, and then places the wire into a pool of mercury with a magnet inside, and the wire rotates around the magnet. This device is now known as a monopole motor. These experiments and inventions became the cornerstone of modern electromagnetic technology.

Michael Faraday's personal life

Faraday and his wife, Sarah.

At that time, Faraday was busy with experiments in electricity and could not spare time to spend his honeymoon with Sara, and Sara smiled and understood Faraday's self-blame, telling Faraday that it was okay to go back when his work was over. In September 1821, Faraday completed the experiment of electromagnetic rotation and wrote the research**, and the two went to the beach for their honeymoon.

Sarah did not understand electromagnetism, and when it was questioned about how Sarah could get along with her scientist husband because she didn't understand science, Sarah was adamant: "Science has drawn him to the point of sleep deprivation, and I am very content to be a pillow for his inner rest." For Sarah, her husband's health was far more important than romantic fantasies.

1. The inventor of alternating current is: Nikola Tesla.

2. Nikola Tesla (Nikola Tesla 1856-1943), born in Croatia on July 10, 1856.

is a world-renowned inventor, physicist, mechanical engineer and electrical engineer. In the late 19th and early 20th centuries, he made outstanding contributions to electricity and magnetics.

3. The achievement was in 1882, when he succeeded Edison.

Soon after the invention of direct current (DC), alternating current (AC) was invented, and the world's first alternating current fluid generator was manufactured, and multiphase power transmission technology was created. He is a peerless genius and a great man forgotten by the world, the alternator was invented by him, and he is known as the "father of the alternating current world".

He died of heart failure alone at a New York hotel from the evening of January 5 to 7 at the age of 86, and his patents and theoretical work based on modern alternating current power systems, including multiphase power distribution systems and alternating current generators, helped him usher in the second industrial revolution.

First, the biggest advantages of alternating current are:

1. It is convenient for long-distance transmission of electricity, and the low voltage can be transported to a long distance after passing through the step-up transformer, and then the high-voltage will be supplied to the civil (220V) or factory (three-phase 380V) for the low voltage through the step-down transformer.

2. Under the same conditions of power generation, the power generation equipment of alternating current is simpler than that of direct current power generation equipment.

Second, the disadvantage of alternating current is that most electrical appliances use direct current, which needs to be rectified and filtered before it can be used.

3. Advantages of direct current: it can be used directly without rectifier filtering equipment.

Fourth, the disadvantages of direct current:

1. The DC voltage cannot be stepped up or down through the transformer. Step-up or step-down conversions can only be performed by specialized electronic circuits.

2. Under the same conditions of power generation, DC power generation equipment is more complex than AC power generation equipment.

Alternating current. Alternating current (AC) refers to the current that changes periodically in size and direction, because the average operating value of the periodic current in a cycle is zero, which is called alternating current or alternating current for short.

1834 Jacobi, Germany invents the DC engine.

1888 Yugoslav-American Tesla invented the alternating current electric motor.

Nikola Tesla, born 1856 (born 10 July 1856) was one of the world's greatest inventors, physicists, mechanics, rubber dismantlers, and electrical engineers. Of Serbian descent, he was born in Croatia (later incorporated into the Austrian Empire). Tesla is considered an important inventor in history.

He is also well known for his contributions to electricity and magnetism in the late 19th and early 20th centuries. His patents and theoretical forms of work based on modern alternating current electric (AC) systems, including multiphase power distribution systems and AC motors, helped him usher in the Second Industrial Revolution.

Direct current was first invented by Edison, and the circuit through which direct current passes is called a DC circuit, which is a closed conductive circuit composed of a DC power supply and a resistor. In this DC circuit, a constant electric field is formed.

Outside the power supply, the positive charge flows from the high potential to the low potential through resistance, and in the power supply, the electrostatic force is overcome by the action of the non-electrostatic force of the power supply, and then from the low potential to the high potential, and so on, forming a closed current line. Therefore, in a DC circuit, the role of the power supply is to provide a constant electromotive force that does not change with time, supplementing the Joule heating consumed on the resistor.

Thomas edison.

The first commercialized transmission of electricity was 110 volts direct current, developed by Thomas Edison in the late nineteenth century. However, due to the differences in transmission and voltage conversion, almost all of the current power distribution is alternating current. In the mid-50s of the 20th century, ultra-high voltage direct current systems were developed, and now this technology is used for long-distance and underwater power transmission, and an alternative to high-voltage alternating current is not common.

However, special applications require that some railway power systems that use a third rail power supply or overhead tram lines still use direct current, and the alternating current is distributed to a substation and converted to direct current by a rectifier.

However, in the end application, it is the world of direct current, especially in the developed areas of science and technology (such as Silicon Valley in California, etc.), almost all chargers currently use direct current to charge the battery, and it is used as a power source in almost all electronic technology systems. Direct current is also used in the production of aluminium and other chemicals.

Red is DC.

The inventor of direct current is Edison, direct current was the first to be invented on the earth, due to the fact that direct current could not be transmitted over long distances at that time, but later Nikola Tesla invented alternating current as a common power source.