7th Class Science Electric Current and Its Effects Question Bank Electric Current and Its Effects

  • question_answer
    MCB

    A) is a device based on heating effect of current

    B) is a device based on magnetic effect of current

    C) is a switch which automatically turns off when current in it exceeds the safe limit

    D) None of these

    Correct Answer: C

    Solution :

    is a switch which automatically turns off when current in it exceeds the safe limit


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