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

  • question_answer
    DIRECTIONS: On the basis of following diagram / picture answer the questions given below: In the circuit below, which switch should be left open and which switch should be left closed so that only bulb Y lights up? Switch A          Switch B          Switch C          Switch D

    A) Closed             Closed             Open               Open  

    B) Closed             Open               Open               Closed

    C) Open               Open               Closed             Closed

    D) Open               Closed             Closed             Open

    Correct Answer: C

    Solution :

    Switch A\[\to \]Open, Switch B\[\to \]Open, Switch C\[\to \]Closed, Switch D\[\to \]Closed


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