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