With electrostatic induction, an electric charge appears on the surface of a conductor introduced into an external electrostatic field. This charge, which accumulates on the surface of said conductor, is called an induced or induced charge. Moreover, on the opposite sides of such a conductor, the induced charges will be of the opposite sign - on the one hand there will be positive, on the other - negative.

The accumulation of charge on the surface of the body during electrostatic induction will occur until the intrinsic electrostatic field of this body almost completely compensates for the external electrostatic field in which this body is placed. This happens with bodies with high conductivity, that is, with metals characterized by low resistivity. The phenomenon of electrostatic induction finds application in the technique of ...

Part of the design of the circuit breaker (automatic machine) is a thermal release. The fact is that inside the circuit breaker two ways of protection against current overload are implemented right away: an electromagnetic release, opening the circuit when the rated current is exceeded several times (with a short circuit), and a thermal release, which operates at lower overload currents, but having, however, less speed than its electromagnetic ally. Of course, when the current passes through the wiring a little more than its rated current, the wiring does not burn out, so the speed of the thermal release is usually enough.

The thermal release is based on a bimetallic plate, which heats up from the current passing through it, and gradually bends if the current becomes higher and higher relative to the rating for this machine (typical, which is indicated in the marking), which ultimately leads to opening. ..

In gasoline internal combustion engines, spark plugs are used to ignite the air-fuel mixture. An electrical discharge with a voltage of thousands of volts occurs between the electrodes of the spark plugs at each cycle of the engine, and at certain times ignites the fuel-air mixture inside the cylinder.

For the first time, a spark plug, as we know it to this day, was developed in 1902 by scientist Robert Bosch to be powered by a high-voltage magneto, designed in the workshop of his eponymous company. From that moment on, spark plugs began to be widely used in internal combustion engines, and the spark plug device has still not been structurally changed, only the materials used in it have evolved. Fundamentally, the spark plug includes the following main elements: a metal body, an insulator and a central conductor ...

Before checking any chip for performance, you need to know and understand its device, at least approximately. This is necessary in order to pre-imagine what signals or voltages to expect from a working microcircuit at its terminals. It is best to assemble a circuit for testing it, at least on a breadboard, to test a specific microcircuit - this is if the microcircuit is new or already worn out.

In general, if the device of the microcircuit is known, then in some situations it can be checked without even soldering from the board on which it is installed, simply by measuring the signals on the legs with a multimeter or an oscilloscope. Then the presence or absence of a signal or a distorted pulse shape will immediately show what is what.Suppose that the microcircuit is still installed on the board and it is undesirable to immediately solder it ...

There are several ways to connect the conductors of wires and cables. Each of them is characterized by its advantages and disadvantages. Recently, a way of connecting conductors using Wago terminal blocks has become increasingly popular. Many people prefer this method of connecting conductors due to such an advantage as ease of connection.

Using these terminal blocks, the process of wiring is greatly simplified: to connect the conductors, you do not need a special tool, nor do you need special skills and experience in conducting electrical work. Wago terminals come in several series, each of which has its own design features and method of clamping conductors. The easiest to install are the Wago 773 series self-clamping terminals and the more compact 2273 series terminals ...

A method of transmitting electrical energy to a distance without using a conductive medium is called wireless transmission of electricity. By 2011, several successful experiments were carried out in the microwave range with capacities of several tens of kilowatts, while the efficiency was about 40%.

This happened first in 1975 in California and the second time in 1997 on Reunion Island. The longest distance was about one kilometer, an experiment was conducted to study the energy saving possibilities of one village without using a traditional cable. Technologically, the principles of electric power transmission over a distance include, depending on the transmission distance, the following. At short distances at low powers - induction and resonance methods, such as in RFID tags and smart cards ...

Pin power connectors are widely used today to connect external power supplies to various devices: electronic medical devices, table fans and lamps, chargers, portable speakers, etc. In many devices, having a built-in power supply is simply not convenient, and therefore it is made external, which is sometimes much more practical. In addition, one power supply can be used for alternate use with several different devices, since the pin connectors have a unified format.

Assembled, this connector consists of a plug and socket. The plug itself includes two parts: a plastic case and a cylindrical contact with a pair of terminals for soldering the wire coming from the power supply. The conclusions for fastening the wire can be made not only for soldering, but also in the form of a terminal block. The socket of the connector, as the name implies, has a pin and its own housing ...

It happens that when you install electrical wiring, you have to connect wires of different sections. And there is, apparently, no problem, because there are many different ways to do this. Nevertheless, in each case, one of the options will be most successful. We can talk about mounting a junction box, while installing a wall outlet is a completely different matter, where good contact and possibly the smallest transition resistance at the fixation point are very important.

From ancient times to this day, ordinary twisting has not lost popularity. Using twisting, it is easy to connect wires of close sections, for example 1 sq. Mm and 1.5 sq. Mm. And if the sections are very different? Then a good twist will not work, because the cores will not be equally snug against each other.In order for the twist to turn out to be of high quality, the wires should evenly wrap around each other, it should not be such that a thin wire is simply wound over a thick one, because then the contact will be bad ...