12th Class Physics Sample Paper Physics Olympiad Sample Paper-4

  • question_answer A galvanometer is connected as shown in figure. It has resistance of \[100\,\,\Omega \]. What should be resistance connected to it in parallel so that its deflection is reduced to half? 

    A)  \[100\,\,\Omega \]                

    B)        \[91\,\,\Omega \]

    C)  \[99\,\,\Omega \]                  

    D)    None of these

    Correct Answer: B


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