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Complete these sentences according to the text.
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| 1. Electron mobility is higher in …. | a. every year |
| 2. Silicon transistors are much more sensitive than electronic tubes to … | b. in a vacuum |
| 3.Mechatronic circuits have replaced electromechanical devices in … | с. IC |
| 4. Over a billion of individually-packaged transistors are produced … | d. useful device |
| 5. Transistors can be easily mass-produced using a … | e. importance in today’s society |
| 6. Very low cost of mass production is the main reason of transistor’s … | f. an electromagnetic pulse |
| 7. Transistor’s flexibility and reliability has made it … | g. an equivalent mechanical control function |
| 8. Diodes, resistors, transistors along with other electronic components form … | h. gain |
| 9. It is easier and cheaper to use a standard microcontroller than to design … | i. controlling appliances and machinery |
| 10. The ratio of the output signal to the input signal is called … | j. a highly automated process |
2.13. Answer the questions to the text.
1. What is one of the greatest inventions of the 20th century?
2. Why is the transistor important in modern electronics?
3. How are most transistors produced now?
4. What properties have made a transistor a widespread device?
5. What devices have been replaced in controlling appliances and machinery?
6. What is the “gain”?
7. How powerful are modern transistor audio amplifiers?
8. How is the transistor used as a switch?
9. Where is this type of transistor operation (switch) common?
10. What are the key advantages of transistors?
11. Are there any disadvantages in using transistors?
| GRAMMAR |
Tenses of the Active Voice