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| Q. |
Name two elements that find wide application in transistor industry – |
| A. | Silicon and Germanium |
| B. | Carbon and Platinum |
| C. | Iridium and Germanium |
| D. | Tungsten and Platinum |
| Answer» A. Silicon and Germanium | |
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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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