The device and operation of the transformer. Types of cores for transformers. The concept of an autotransformer. The use of transformers. Voltage transformation

What is a coaxial cable and how does it work? Scope, pros and cons. Types of coaxial cables. Coaxial cable parameters.

Why do you need rosin when soldering? The main properties and types of rosin. What is rosin made from? Is rosin harmful?

What is the piezoelectric effect. Substances with a piezoelectric effect. Properties and characteristics of substances with a piezoelectric effect. The use of the piezoelectric effect.

The device and types of optocouplers, what is it. Advantages and disadvantages of optocouplers. Scope of optocouplers and where they are used.

To check the condition of a car battery, it is not necessary to have professional equipment, industrial stands, etc. Everything necessary and sufficient for the car owner ...

How electric current is generated. Current direction. Conditions for maintaining electric current in the circuit: free charge carriers, electric field, external force for ...

The main technical characteristics of the transistor 13001. Package options and pinout 13001, analogues. Scope of transistors 13001.

What is inductance: definition, units, formulas. The phenomenon of self-induction. Series and parallel connection of inductors. The quality factor of the inductor. Designs of inductors.

Definition of electrical capacity, units of measurement and formulas. Calculation of the electrical capacitance of capacitors. The use of capacitors, their types and designs.

What is a local oscillator, its purpose, a description of the operation of a local oscillator and the principle of heterodyne reception. Basic requirements for the parameters of the local oscillator.

Device, CVC and types of field effect transistors. Unipolar triodes with p-n junction, with an insulated gate. Schemes for switching on field-effect transistors.

The device of the inductance sensor and the principle of its operation. Advantages and disadvantages of inductive sensors. Application area. Practical implementation examples.

What is a microchip. Their purpose and use. Types of modern microcircuits. Chip cases. Benefits of using microchips.

Physical foundations in the operation of optical fiber. The device and design of optical fiber and fiber optic line.Advantages and disadvantages of optical cables.

What is an electric battery and how does it work. Popular types of batteries: lead-acid, nickel-cadmium, nickel-metal hydride, lithium-ion. The main characteristics of batteries.