The application development of electricity, the application of electricity in life

The applications of electricity in life are as follows:

1. Rice burger cooking, electric wok cooking, and electric kettle boiling water are the use of electricity to convert into internal energy, all of which use heat transfer to cook, cook, and boil water.

2. The exhaust fan (range hood) uses electrical energy to convert into mechanical energy, and uses air convection to convert air. The exhaust fan is a kind of air conditioning appliance that drives the fan blade to rotate and drive the air flow by the motor to make the indoor and outdoor air exchange, also known as the ventilation fan. The purpose of exhaust is to remove dirty air from the room and regulate the temperature, humidity and feel.

3. The three-pin plug of the rice cooker, electric wok, and electric kettle should be inserted into the three-hole socket to prevent the occurrence of electrical leakage and electric shock accidents.

4. The microwave oven heats evenly, with high thermal efficiency, hygienic and pollution-free. The heating principle is to use electrical energy to convert electromagnetic energy, and then convert electromagnetic energy into internal energy. When the magnetron emits microwave energy at a frequency of 2450MHz, the water molecules placed in the chamber of the microwave oven oscillate at a frequency of 100 billion times per second.

The core element that generates high-frequency electromagnetic fields is the magnetron tube. Food molecules vibrate in a high-frequency magnetic field, and the molecules collide and rub against each other to produce heat energy, resulting in the food being heated. Microwave ovens use this heating principle to cook food.

Electricity tips

1. Eliminate old electrical appliances with high power consumption in time and choose electrical appliances with low energy consumption.

2. Remember to turn off the early source of electricity after using up or when not in use of electrical appliances at home and unplug them to prevent standby power consumption.

3. Avoid charging commonly used power-consuming items such as mobile phones, pads, and power banks overnight.

4. Remember to close the main gate when you go out.

5. The target temperature is set between 35-40 degrees Celsius to be more energy-efficient.

6. Plug in the power supply 1 hour before use, and keep it on as you go.

7. Regularly check and clean the heating rod in the water heater to improve the heating efficiency.

The applications of the electronic technology of the electric power family Shanna are as follows:

Modern computers and communications, for example, rely on DC power supplies from switched-mode converters, which can be battery-managed converters for laptops, redundantly powered multi-converter power supplies for server clusters, or power supplies for program-controlled switches. They have the characteristics of multiple independent outputs and multiple voltage levels to supply the needs of the computer, its peripherals and displays. The design of this low-power power system is also permeated with the latest achievements in power electronics.

Distributed power supply technology. A distributed structural power source that powers a computer system. Includes an off-line active power factor correction (PFC) circuit and multiple DC DCs at different load points of the post-amp

Inverter. This structure is different because it uses an intermediate voltage stage to divide the power into N, but the traditional power conversion structure of the bucket stem. In the near future, a 12V voltage bus or a 48V voltage bus will be used, passing through each DC DC

The converter transfers energy to individual functional boards or subsystems.

High-performance computer power systems with high dynamic response and low voltage (2 V or even 1 V) output are being developed. This requires high power density, low power consumption, and high efficiency performance indicators, as well as new technologies such as synchronous rectification, multiphase multiplexing, on-board power conversion, and board-level interconnect. By the beginning of 2004, foreign laboratories had developed a 70 A efficiency of 87% local performance power supply.

In the near future, a more advanced chip-level interconnection technology and power conversion technology will appear in front of the world.

The communications industry is one of the largest users of power supplies and batteries, ranging from cordless** small power supplies to ultra-reliable backup power systems. For example, a typical power system to maintain network communication in an office area is a 5kW power converter consisting of a front-end offline power factor correction (PFC) boost converter and two forward converters.

The front-end off-line PFC boost converter ensures a reliable power supply to the power system. The forward converter at the back end provides a high current output to the distribution bus of the ** system at 48V DC. The field even has its own major annual conference, the International Telecommunication Energy Conference (INTELEC).

The knowledge of electricity is as follows:

Electricity is one of the sub-disciplines of physics. His research focuses on the formation of "electricity" and its applications. In the West, the word "electricity" is derived from the Greek word amber, and in China it is derived from the phenomenon of lightning and lightning.

Since the middle of the 18th century, the study of electricity has been flourishing. Each of its major discoveries has led to extensive practical research, which has led to the rapid development of science and technology.

Nowadays, electricity is inseparable from human life, scientific and technological activities, and material production activities. With the development of science and technology, some research contents with specialized knowledge have gradually become independent and formed specialized disciplines, such as electronics and electrical engineering. Electricity, also known as electromagnetism, is a fundamental discipline of great significance in physics.

Electrostatics:

It is a discipline that studies the electric field generated by the stationary charge and the law of the electric field on the charge. There are only two types of electric charges, which are called positive and negative. The same charge repells each other, and the different charges attract each other. Electric charges obey the law of conservation of electric charges. Medium to do.

Charge can be transferred from one object to another, and the algebraic sum of charge remains constant in any physical process. The so-called charging is nothing but the separation or transfer of positive and negative charges; The so-called disappearance of electric charge is nothing but the neutralization of positive and negative charges.

The interaction forces between the charges at rest conform to Coulomb's law: in a vacuum, the magnitude of the force acting between two charges at rest is proportional to the product of their charge and inversely proportional to the square of the distance between them; The direction of the force is along the line between them, with the same charge repelling and the different charge attracting.