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What is EMF (electromotive force): definition in simple words

Oct 28, 2021

EMF is understood as the specific work of external forces to move a unit charge in the circuit of an electric circuit. This concept in electricity ...

Dielectric strength: definition and reasons for the decrease

Oct 28, 2021

A dielectric is a substance that does not conduct electrical current (or is very poorly conductive). There is such a thing as "insulation breakdown...

How to take readings from the electric meter OS EMOS-2

Oct 28, 2021

Elena asks: Hello, I am renting a private house. Here is an old counter OS EMOS 2 with an hour dial and five values. There is a comma after the fou...

Bipolar transistors: device, principle of operation, switching circuits

Oct 28, 2021

The word "transistor" is made up of the words TRANSfer and resISTOR - resistance converter. It replaced lamps in the early 1950s. It is a three-lea...

The nominal value of the difavtomat is less than the nominal value of the input automaton

Oct 28, 2021

So what kind of stove will it be? If there is a line under it, then perhaps it is on it and there is a difavtomat. You either need to check with th...

The circuit breaker does not turn off at short circuit - reasons

Oct 28, 2021

Hello! With a short circuit on a "bad" outlet, nothing happens - only sparks on the wires that I short-circuit. AB does not work, the outlet is sti...

Why is it dangerous to use a transformerless power supply for low-voltage devices

Oct 28, 2021

The question is answered: Alexander MyasoedovWho said that is unacceptable? Can. But:In this case, the galvanic isolation of the device, which is p...

Types of solders for soldering, their application and purpose

Oct 28, 2021

To create a sealed, reliable connection of metal parts, soldering is most often used. The essence of the process lies in the bonding of materials w...

Everything in the office is shocked: what to do and where to look for the problem

Oct 28, 2021

Olga asks: Hello! In the office, it shocks from everything: a chair, a wall, a microwave oven, flowers... During the day, constantly, got up from t...

Calculation of the power regulator for infrared heaters

Oct 28, 2021

The question is answered: Alexander MyasoedovHello! It is necessary to add up the power, do you want from one regulator or from different ones? Are...