Power Engineering. Соколова Е.В. - 39 стр.

of the lamp has about 30 times the resistance what it had, when cold. 19. The stronger
the light, the more electrons per second will leave the cathode and so the larger will
be the current. 20. If the current does not change, there is no induced e.m.f

     14.2 Переведите предложения, обращая внимание на пассивную кон-
струкцию

       l.What will happen if the screen grid is inserted into a triode? 2. Arc is formed
when plasma is produced between the plate and the cathode. 3. What happens when
the arc has been extinguished? 4. Once ionization takes place the plasma is produced.
5. An ammeter should be connected to the circuit in series. 6. Little packets of energy
are emitted in space in the form of radio waves 24 centimetres long. 7. A new tele-
phone for noisy places is developed in Japan. The transmitter section of the new tele-
phone is equipped with a special microphone and an amplifier to enlarge the voice of
the speaker. 8. The semiconductor resistance thermometers are called thermistors. 9.
Thermistors are used for automatic gradual switching on of electrical machines. 10.
Thermistors may be used as time relays when an interval is required between the
switching on of a given electric device and that of another. 11. This experiment has
just been carried out. 12. Electric signals are amplified with the help of a
semiconductor device. 13. In tuning radio frequency receiver the incoming voltage is
amplified at the carrier frequency.
     14.3 Переведите предложения, обращая внимание на причастные, ге-
рундиальные обороты и отглагольные существительные

       1. The electron was discovered more than fifty years ago, but has never been
seen. 2. In this type, of receiver a crystal detector is followed by an audio amplifier.
3. Some circuits are affected by changes in line voltage. 4. The distribution of the
flux is influence by the frequency of the flux and the resistance of the coil. 5. Most
electronic devices are enclosed in glass tubes from which the air has been pumped
out. 6. Semiconductor devices which are being used to help electron valves reduce
the size of instruments considerably. 7. The receiver has been developed to illustrate
the principle of molecular electronics. 8. The turbines are driven by the kinetic energy
of the water. 9. A luminescent screen is placed on the inner side of the front face of
the tube. 10. When two or more cells are joined, they form a primary battery. 11. A
new steam boiler will be installed on a 131-foot tower and will have a heating surface
of 1,300 square feet. 12. Pumps which are driven by sunshine energy have been de-
veloped in Italy. 13 One may be sure that by the end of our century some new dis-
coveries in the field of X-ray and atomic energy application will have been made by
scientists. 14. The electric energy is obtained due to some definite mechanical source.
15. The lamp does not flash when the switch is being turned off. 16. The electric cur-
rent reaches its maximum value when the magnetic lines are being cut most rapidly
by the conductors

      14.4 Переведите предложения, обращая внимание на согласование

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