Выберите соответствия между английскими словами и выражениями и их русскими эквивалентами 1. governm...: ответ на тест 781294 - Английский язык

Выберите соответствия между английскими словами и выражениями и их русскими эквивалентами
1. government records
2. civil organizations
3. vigilant public
4. government bodies

Выберите соответствия между английскими словами и выражениями и их русскими эквивалентами
1. government records
2. civil organizations
3. vigilant public
4. government bodies

Выберите соответствия между английскими словами и выражениями и их русскими эквивалентами
1. collection of news
2. transmission of news
3. to tell the difference
4. to support theory

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The study of electricity may be divided into three classes or branches: magnetism, elektrostatics, and electrodynamics. Magnetism is the property of the molecules of iron and certain other substances through which they store energy in a field of force because of the arranged movement of the electrons in their atoms. Electrostatics is the study of electricity at rest, or static electricity. Examples of this type of electricity are charges on condenser plates. Rubbing glass with silk produces static electricity. Electrodynamics is the study of electricity in motion, or dynamic electricity. The electricity which flows through wires for light and power purposes is a good example of latter type of electricity.

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Of the many types of tubes which are in use, the simplest is the diode.
This is a two-element tube which consists of an emitter of electrons (the cathode) and a collector of electrons (the plate or the anode).
The term diode refers to the number of electrodes within the tube. The main function of the two-element tube is as converter of power. By this we understand that by means of the diode the electric power can be converted. Alternating voltage is converted in the form of pulsating direct current (the convertion of a. c. power into d. с power). This is the process of rectification.

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The triode, or three electrode tube, is an elaboration of the diode.
The diode consists of two electrodes. They also appear in the triode and they constitute the basis of the triode. In the triode the third electrode (the control grid) is added in the space between the emmitter and the plate.
The control grid is a metal structure which may be of different shape, depending upon the design of the tube.
The basic function of the triode is to amplify the current, or voltage or electric power. In this process of amplification the control grid plays a most important role.