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BCECE Engineering BCECE Engineering Solved Paper-2013

  • question_answer
    Deuteron and \[\alpha -\]particle are put \[\text{1}\overset{\text{o}}{\mathop{\text{A}}}\,\]apart in air. Magnitude of intensity of electric field due to deuteron of \[\alpha -\]particle is

    A)  zero                     

    B)         \[2.88\times {{10}^{11}}N/C\]  

    C)  \[1.44\times {{10}^{11}}N/C\]

    D)         \[5.76\times {{10}^{11}}N/C\]

    Correct Answer: C

    Solution :

    \[E=9\times {{10}^{9}}\times \frac{q}{n}\] \[=9\times {{10}^{9}}\frac{1.6\times {{10}^{-19}}}{{{(1\times {{10}^{-10}})}^{2}}}=1.44\times {{10}^{11}}\,M/C\]


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