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Communication S...

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  • Question 1
    4 / -1

    The characteristic impedance of a coaxial wire line is of order

  • Question 2
    4 / -1

    In which manner does current or voltage vary in an analog signal with time?

  • Question 3
    4 / -1

    If an antenna radiates electromagnetic waves from a height h, then the range d upto which the signal can be detected is given by (R is the radius of the earth)​

  • Question 4
    4 / -1

    Super high frequencies of __________ are used in Radar and Satellite Communication.​

  • Question 5
    4 / -1

    The bandwidth sufficient for commercial telephonic communication:​

  • Question 6
    4 / -1

    Optical communication using fibres is performed in the frequency range of​

  • Question 7
    4 / -1

    Modes of communication system are classified into :

  • Question 8
    4 / -1

    If the area of a TV telecast is to be doubled, then height of transmitting antenna will have to be

  • Question 9
    4 / -1

    With the increase in frequencies more than 2 MHz, Ground wave propagation

  • Question 10
    4 / -1

    What should be the approximate height of antenna if the TV telecast is to cover a radius of 100 km?

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