Power Engineering. Соколова Е.В. - 12 стр.

tion. 11. Being tested this device showed the desired results.

      3.9 Переведите предложения

       l.When rubbed many substances become electrified. 2.When tested this device
showed the desired results. 3.When this device was tested it showed the desired re-
sults. 4. We tested this device, it showing good results. 5. These devices have been
tested in our laboratory. 6. The device tested showed the desired results. 7. Unless
tested these devices should not be used at our plant.

      3.10 Прочтите диалог в ролях

      Dialogue

      A: Have you ever heard of Faraday?
      B: Certainly I have. He was a celebrated English experimenter.
      A: Can you tell me a few words about his discovery?
      B: With pleasure! He produced rotation of a wire carrying, electric current
around a magnetic
      pole.
      A: Can anybody repeat this experiment?
      В: I suppose so. Anyone who has a coil of wire, a bar magnet and a sensitive
current indicator
      may repeat Faraday experiment.
      A: What was his experiment based on?
      В: When the bar magnet or the coil carrying the current was motionless there
was no motion of the needle. When a bar was thrust into the coil the needle moved in
one direction.
      A: What do you think? Is there any discovery in electrical science which has
been so important as Faraday's?
      В: No, there isn't any. Almost every application of electricity in modern life
depends upon the discovery of Michael Faraday.
      A: Thank you for your interesting information.
      В: You are welcome.

      3.11 Переведите текст , не пользуясь словарем

                        A few words about some discoveries
       Faraday himself made a machine which could general electricity. He also made
an electric motor but these were only scientific instruments and much work had to be
done by engineers before a practical machine could be produced.
       Faraday's machines and those of others which were in/vented afterwards were
built up with permanent magnets, and it was not until 1845 that Wheatstone produced
a ma-'chine in which an electromagnet was used, the electricity being supplied from a

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