NEET Sample Paper NEET Sample Test Paper-51

  • question_answer What is the net force on the rectangular coil-  

    A) \[25\times {{10}^{-}}^{7}N\text{ }moving\text{ }towards\text{ }wire\]

    B) \[25\times {{10}^{-}}^{7}N\text{ }moving\text{ }away\text{ }from\text{ }wire\]

    C) \[35\times {{10}^{-}}^{7}N\text{ }moving\text{ }towards\text{ }wire\]

    D) \[35\times \,{{10}^{-}}^{7}N\text{ }moving\text{ }away\text{ }from\text{ }wire\]

    Correct Answer: A

    Solution :

    \[F=\frac{{{\mu }_{0}}}{2\pi }(2A)\,\,(1A)\,\left[ \frac{1}{2\times {{10}^{-2}}}-\frac{1}{(10+2)\times {{10}^{-2}}} \right]\]

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