why are circuit breakers used in parts of national grid ?

Question

why are circuit breakers used in parts of national grid ?

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Edana Edana 3 months 2021-07-19T21:55:37+00:00 1 Answers 0 views 0

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    2021-07-19T21:56:39+00:00

    Answer:

    To protect control circuits or small devices with insufficient cutting power

    Explanation:

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )