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  5. Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर

12th Class Physics Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर Question Bank MCQ - Current Electricity

  • question_answer
    Four resistances of \[3\,\Omega ,\,3\,\Omega ,\,3\,\Omega \] and \[4\,\Omega \] respectively are used to a form of a Wheatstone bridge. The \[4\,\Omega \] resistance is short circuited with a resistance R in order to get bridge balanced. The value of R will be:

    A) \[10\,\Omega \]                   

    B) \[11\,\Omega \]

    C) \[12\,\Omega \]                          

    D) \[13\,\Omega \]

    Correct Answer: C

    Solution :

    (c) \[12\,\Omega \] The bridge will be balanced when the shunted resistance is of the value of \[3\,\Omega \] \[\therefore 3=\frac{4\times R}{4+R};12+3R=4R\] \[\therefore R=12\,\Omega \]


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