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NEET Sample Paper NEET Sample Test Paper-2

  • question_answer
    In the balanced wheatstone bridge circuit as shown in the figure, when the key is pressed, what will be the change in the reading of the galvanometer?

    A)  No change       

    B)  Increased

    C)  Decreased        

    D)  Zero

    Correct Answer: A

    Solution :

    Under balanced condition \[\frac{P}{Q}=\frac{R}{S}\] Here resistances are in same proportion. Hence, there will not be any deflection in galvanometer on pressing the key. It remains same.


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