NEET Sample Paper NEET Sample Test Paper-19

  • question_answer In the circuit shown in the figure

    A)  The current through NP is 0.5 A

    B)  The value of \[{{R}_{1}}=20\Omega \]

    C)  The value of \[R=14\Omega \]

    D)  The potential difference across R = 49 V

    Correct Answer: C

    Solution :

    Potential difference across MP = p. d. across NO = p. d. across N.P (see figure.) \[\therefore \]\[{{I}_{NP}}\times 10=20\times 1\]or \[{{I}_{NP}}=2A\] Across MP. 0.5\[{{R}_{1}}=20\] or\[{{R}_{1}}=40\Omega \] Total current \[=2+035+1.0=3.5\,A\] \[3.5=\frac{69}{R+40/7}\]yields \[R=14\Omega \] Hence, the correct choice is [c].


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