Power Engineering. Соколова Е.В. - 11 стр.

current through the coil and the galvanometer so that the needle moved. The same
explanation holds when two coils are used, one of them carrying a current, taking the
place of the iron bar. Whenever lines of force are cut by a conductor, a voltage is
generated in that conductor. So long as the conductor moves so that it cuts the lines
i.e., does not move parallel with them a voltage is set up. The more lines per second,
and the more it cuts the lines at right angles, the greater the voltage.
        4. There is no discovery in electrical science which has been so important. Al-
most every application of electricity to modern life depends upon this discovery of
Michael Faraday.

      3.5 Переведите словосочетания

       a) electrical machinery, bar magnet, metallic connection, electrical effect, lines
of force, sensitive current indicator;
       b) to induce a current, to generate a current, to send a current, to carry the
current, to change the position, to change the direction, to change the polarity, to re-
verse the motion ,to produce some electrical effect, to produce the rotation, to move
the needle, to cut the lines of forces, to set up voltage.

      3.6 Ответьте на вопросы

      1. What was Faraday famous for? 2. Was he an English or French scientist? 3.
What is needed for repeating Faraday's experiment? 4. When was there no motion of
the needle? 5. Was there any metallic connection between two coils? 6. What is gen-
erated in the conductor when lines of force are cut in it? 7. What does almost every
application of electricity in modern life depend upon?

      3.7 Переведите предложения

      1. The larger the size of the electrodes, the more current capacity they supply.
2. The lower the voltage of one battery, the greater the required number of batteries.
3. The Ore the positive and negative plates, the greater is the charge.4 The higher the
voltage used to charge the condenser, he more energy it will store.

      3.8 Переведите предложения

      1. Faraday's discovery being very important, every application of electricity in
modern life depends upon it. 2. There are some facts underlying Faraday's discovery.
3. The needle moving in one direction, a bar magnet was thrust into the coil. 4. Hav-
ing made his discovery Faraday produced rotation of a wire carrying electric current.
5. While making this experiment he used a sensitive current indicator.6.The device
being applied at our plant is quite modern There are many kinds of vacuum tubes
now in use, the simplest being the diode. 8. Amplifying the current, the scientist got
the necessary results. 9. Flowing through the local resistance R this current produces
varying amounts of IR drops. 10. Oscillating waves are produced by means of oscilla-
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