Find the magnetic field at $P$ due to the arrangement shown

131-154

  • A

    $\frac{{{\mu _0}i}}{{\sqrt 2 \,\pi \,d}}\left( {1 - \frac{1}{{\sqrt 2 }}} \right)\, \otimes $

  • B

    $\frac{{2{\mu _0}i}}{{\sqrt 2 \,\pi \,d}}\, \otimes $

  • C

    $\frac{{{\mu _0}i}}{{\sqrt 2 \,\pi \,d}}\, \otimes $

  • D

    $\frac{{{\mu _0}i}}{{\sqrt 2 \,\pi \,d}}\left( {1 + \frac{1}{{\sqrt 2 }}} \right)\, \otimes $

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