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Вопрос № 145121 - Английский язык

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An electroscope is a sensitive instrument for detecting small electric charges. It consists of a glass-jar closed with a stopper of insulting material in which is fitted a varnished glass-tube. A rod passes through the tube. At the top of the rod there is a metal ball or disc and at the bottom of the rod two pieces of gold leaf are suspended. When a charge is brought near the electroscope, a charge of opposite sign is induced on the metal ball, and a charge of the same sign appears on the two of the gold leaves. Since, the two pieces of gold leaf now have charges of like sign they repel each other.
Варианты ответов
  • Electrode Tube
  • Electroscope
  • A Glass-Tube
  • A Glass Rod
Тип вопроса: Вопрос с одним правильными вариантом
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Вопрос задал(а): Анонимный пользователь, 11 Апрель 2017 в 12:22
На вопрос ответил(а): Астафьева Любовь, 11 Апрель 2017 в 12:22

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