The magnitude of magnetic induction at mid-point $O$ due to current arrangement as shown in Fig will be

214428-q

  • [JEE MAIN 2023]
  • A

    $\frac{\mu_0 I}{2 \pi a }$

  • B

    $0$

  • C

    $\frac{\mu_0 I }{4 \pi a }$

  • D

    $\frac{\mu_0 I}{\pi a }$

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