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Discussion :: Technology

  1. In a color television set using a picture tube a high voltage is used to accelerate electron beams to light the screen. That voltage is about?

  2. A.

     500 volts

    B.

     5 thousand volts

    C.

     25 thousand volts

    D.

     100 thousand volts

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    Answer : Option B

    Explanation :

    The flyback is usually connected to the system that pulls the electron beam across the screen in one direction to 'paint' a line of the image and then returns in the other direction much faster.


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