CEE Kerala Engineering CEE Kerala Engineering Solved Paper-2003

  • question_answer
    In the Wheatstones bridge shown below, in order to balance the bridge we must have:

    A)  \[{{R}_{1}}=3\,\Omega ,{{R}_{2}}=3\,\Omega \]

    B)  \[{{R}_{1}}=6\,\Omega ,{{R}_{2}}=1.5\,\Omega \]

    C)  \[{{R}_{1}}=1.5\,\Omega ,{{R}_{2}}=\]any finite value

    D)  \[{{R}_{1}}=3\,\,\Omega ,{{R}_{2}}=\]any finite value

    E)  \[{{R}_{2}}=1.5\,\,\Omega ,{{R}_{1}}=\]any finite value

    Correct Answer: D

    Solution :

    \[\frac{10}{30}=\frac{{{R}_{1}}}{9}\Rightarrow {{R}_{1}}=3\,\Omega \] and resistance\[{{R}_{2}}\]may have any finite value.


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