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  1. Circuit breaker usually operate under

    2. A.

     After D. C. component has ceased
    B.

     Transient state of short-circuit current
    C.

     Sub-transient state of short-circuit current
    D.

     Steady state of short-circuit current

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    Answer : Option B

    Explanation :

    Circuit breaker usually operate under transient state of short-circuit current.

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