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JEE Main & Advanced Physics Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर Question Bank Grouping of Resistances

  • question_answer
    For what value of unknown resistance X, the potential difference between B and D will be zero in the circuit shown in the figure                                                                     [MP PMT 2004]

    A)            4 W

    B)                    6 W

    C)                    2 W

    D)                    5 W

    Correct Answer: B

    Solution :

                 For balanced Wheatstone bridge \[\frac{P}{Q}=\frac{R}{S}\] Þ \[\frac{12}{(1/2)}=\frac{x+6}{(1/2)}\] Þ \[x=6\Omega \]


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