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Discussion :: Materials and Components

  1. Electrical contact materials used in switches, brushes, relay must possess

    2. A.
    high thermal conductivity and high melting point
    B.
    low thermal conductivity and low melting point
    C.
    high thermal conductivity and low melting point
    D.
    low thermal conductivity and high melting point

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    Answer : Option A

    Explanation :

    Heat generated at contact should be dissipated quickly and contact should not melt.

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