Вопрос № 347327 - Английский язык

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Plate current is the flow of electrons from cathode to the plate and their return to the cathode through the external circuit. Plate current flows in a diode when the plate is made positive with respect to the cathode. No current flows when the plate is negative with respect to the cathode. This is called unidirectional conduction.

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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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The cloud of electrons formed in the space between cathode and the plate is called space charge. The space charge is negative and hence has a repelling effect on electrons emitted from the cathode. The amount of the plate current depends on the space charge and the relative strength of the electric field set up by the positive plate voltage.

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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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The range of radio 1______________ in space is extending more and more. There is every reason to believe that radio links may be set over 2________________ of 100 million kilometers or even more.
Now we cannot imagine our life without electronics.
But it all began with the 3_______________ of radio. It was our Russian scientist A.S. Popov who discovered the principles of 4________________ communication that finally led to the development of electronic tubes for use in various communication devices.

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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.