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NEET Sample Paper NEET Sample Test Paper-53

  • question_answer
    Shown in the figure below is a meter-bridge set up with null deflection in the galvanometer.   The value of the unknown resistor R is-

    A) \[13.75\,\,\Omega \]                   

    B) \[220\,\,\Omega \]

    C) \[110\,\,\Omega \]                      

    D) \[55\,\,\Omega \]

    Correct Answer: B

    Solution :

    \[\frac{P}{Q}=\frac{R}{S}\] \[\Rightarrow \,\,\frac{20}{80}=\frac{55}{R}\] \[\Rightarrow \,\,\,R=220\,\Omega \]


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