Прочитайте текст и определите какой из заголовков соответствует тексту A diode is a two-element elec...: ответ на тест 438797 - Английский язык

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A diode is a two-element electron tube that consists of a cathode and an anode or plate acting as an electron collector. By applying a positive voltage to the plate of a diode, an electric field is established between cathode and plate that attracts electrons emitted from the cathode to the plate.

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A diode is a two-element electron tube that consists of a cathode and an anode or plate acting as an electron collector. By applying a positive voltage to the plate of a diode, an electric field is established between cathode and plate that attracts electrons emitted from the cathode to the plate.

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Current transformers are used for operating ammeters, wattmeters, and other measuring devices. They produce in the meters a current lower than the measured current but proportional to it.
Current transformers also insulate the instrument from the circuit which is being measured. This is necessary for high voltage circuits.

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Due to electronics the first man-made 1_____________ was launched into space, and now man has already set his foot on the Moon, sends probes to distant planets. Radioelectronic 2______________ ensure reliable communication with space probes at distances of millions of kilometers, relay 3_______________ of distant planets. The greatest application of 4______________ is in the field of communications.

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Microelectronics today encompasses thin-film, thick-film, hybrid, and integrated circuit 1________________. These approaches (and combinations of them) are being applied in 2____________ branch of electronics.
Integrated circuits that combine all the 3__________________ of a complete electronic circuit on a single chip of silicon can be produced. The implications of this in the microelectronic evolution are easily 4_______________. Let us compare a conventional J/K flip-flop circuit incorporating solid-state discrete devices and the same type of circuit employing integrated circuitry.

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Electronics is one of the main 1_____________, which forms the 2_______________ basis for using these new methods. Electronics studies the problems connected with the application of instruments and 3_____________, the action of which is based on the utilization of various phenomena that result from the movement of 4______________ through vacuum, gases and solid bodies.