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  1. Radiation resistance of an antenna is 54 Ω and loss resistance is 6 Ω. If antenna has power gain of 10, then directivity is:

    2. A.
    9
    B.
    11.11
    C.
    data not sufficient
    D.
    10

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    Answer : Option B

    Explanation :

    Efficiency of antenna

    Power gain = 10

    Thus directivity .

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