KVPY Sample Paper KVPY Stream-SX Model Paper-29

  • question_answer
    In the shown figure a battery (ideal) is joined between terminals A and B having EMF=E. Find the current supplied by the battery :

    A) \[\frac{8E}{R}\]

    B) \[\frac{8E}{3R}\]

    C) \[\frac{4E}{R}\]

    D) \[\frac{4E}{3R}\]

    Correct Answer: B

    Solution :

    As potential of points \[{{O}_{1}},{{O}_{2}},{{O}_{3}}\]and \[{{O}_{4}}\] is same
    Hence, Equivalent circuit.
    \[\Rightarrow {{R}_{eq.}}=\frac{3R}{8}\]           Hence, \[\therefore \,\,I=\frac{8E}{3R}\]

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