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problem 1: What do you mean by modulation index in FM transmission and how does it influence the bandwidth required for all FM channels.

problem 2: Describe how you would proceed to find out the channel bandwidth for transmission of sound signals by frequency modulation.

problem 3: What do you mean by an electron multiplier?

problem 4: What is the operating principle of a white and black camera tube?

problem 5: Distinguish between negative modulation from the positive modulation.

problem 6: Draw and describe cross-section view of Image Orthicon camera tube.

problem 7: What is photoelectric effect in the video cameras?

problem 8: What do you mean by the term dark current in Vidicon?

problem 9: Describe how the Image Orthicon generates video signal when light from any scene is focused on its faceplate.

problem 10: What precautions should be observed while handling the picture tube? Why is it essential to give spark gap protection between the different electrodes?

Electrical & Electronics, Engineering

  • Category:- Electrical & Electronics
  • Reference No.:- M97320

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