Прочитайте текст и выберите утверждение соответствующее содержанию текста Real telegraphs were possi...: ответ на тест 781523 - Английский язык

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Real telegraphs were possible until it was proved that electricity and magnetism were connected. It was found that a needle of a compass moved when it was put near а wirе with a current flowing through it. A compass needle is a magnet. If a wire carrying a current could move it, then the wire must be a magnet too.
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  • A needle of a compass didn’t move when it was put near а wire with a current flowing through it.
  • A wire carrying an electric current can move a compass needle because they are both magnets.
  • It was discovered that electricity and magnetism aren’t connected.
  • A compass needle is electricity.
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Вопрос задал(а): Анонимный пользователь, 13 Ноябрь 2020 в 01:29
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