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Discussion :: Materials and Components

  1. When subjected to alternating stresses, an insulating material is characterised by complex dielectric constant ∈'r - j"r . In such materials, the dielectric losses under alternating stress is proportional

  2. A.
    "r
    B.
    both ∈'r and ∈"r
    C.
    'r
    D.
    (∈"r)2

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    Answer : Option A

    Explanation :

    The imaginary part of ∈r gives rise to absorption of energy.


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