Magnetic field at point $'M'$ of given current distribution

818-1015

  • A

    $\frac{{2{\mu _0}}}{\pi } \odot $

  • B

    $\frac{{5{\mu _0}}}{{2\pi }} \otimes $

  • C

    $\frac{{2{\mu _0}}}{{\pi }} \otimes $

  • D

    $\frac{{{\mu _0}}}{{2\pi }} \otimes $

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  • [NEET 2016]

Write Biot-Savart law.