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GK QUESTION#3080

Which device was invented by Carl Friedrich Gauss and Wilhelm Eduard Weber in 1833?

  1. ATransistor
  2. Belectromagnetic telegraphCorrect answer
  3. COptical maser
  4. DParticle accelerator
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Answer

B. electromagnetic telegraph

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Explanation

Gauss and Weber constructed an electromagnetic telegraph in Göttingen in 1833. Its line connected their workplaces and carried electrical signals. A transistor, optical maser and particle accelerator belong to much later developments.

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