A wire carrying $I$ is shaped as shown. Section $AB$ is a quarter circle of radius $r.$ The magnetic field at $C$ is directed

131-214

  • A

    along the bisector of the angle $ACB$, away from $AB$

  • B

    along the bisector of the angle $ACB$, towards $AB$

  • C

    perpendicular to the plane of the paper, directed into the paper

  • D

    at an angle $\pi /4$ to the plane of the paper

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