JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2014

  • question_answer
    Two tangent galvanometer having coils of same radius are connected in series. A current flowing in them produces deflections of 60° and 45° respectively. Ratio of number of turns in the coils is

    A) \[\frac{(\sqrt{3}+1)}{1}\]                                             

    B) \[\frac{4}{3}\]

    C) \[4\mu F\]                         

    D) \[10\mu F\]

    Correct Answer: A

    Solution :

                    In the first galvanometer \[{{P}_{2}}\] \[\text{2}\times \text{1}{{0}^{\text{7}}}\text{m}/\text{s}\] In the second galvanometer \[\text{2}\times \text{1}{{0}^{-2}}T\] \[\left( \frac{e}{m} \right)\] \[\text{1}.\text{76}\times \text{1}{{0}^{\text{11}}}\text{C}/\text{kg}\] \[2B\]    \[\frac{B}{4}\] \[\frac{B}{2}\] \[y=A\sin (Bx+Ct+D)\]


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