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  1. Name two elements that find wide application in transistor industry.

  2. A.

     Silicon and Germanium

    B.

     Carbon and Platinum

    C.

     Iridium and Germanium

    D.

     Tungsten and Platinum

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    Answer : Option A

    Explanation :

    A transistor is a semiconductor device used to amplify and switch electronic signals and electrical power. Semiconductor material (date first used): the metalloids germanium (1947) and silicon (1954) — in amorphous, polycrystalline and mono-crystalline form; the compounds gallium arsenide (1966) and silicon carbide (1997), the alloy silicon-germanium (1989), the allotrope of carbon graphene (research ongoing since 2004), etc.


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