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Discussion :: Electrical Cables

  1. A certain cable has an insulation of relative permittivity 4. If the insulation is replaced by one of relative permittivity 2, the capacitance of the cable will become

    2. A.

     One half
    B.

     Double
    C.

     Four times
    D.

     None of the above

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    Answer : Option A

    Explanation :

    Explanation Not Provided

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