A wire carrying current $I$ is tied between points $P$ and $Q$ and is in the shape of a circular arc of radius $R$ due to a uniform magnetic field $B$ (perpendicular to the plane of the paper, shown by $\times \times \times $) in the vicinity of the wire. If the wire subtends an angle $2\theta_0$ at the centre of the circle (of which it forms an arc) then the tension in the wire is

822-816

  • [JEE MAIN 2015]
  • A

    $\frac{{IBR}}{{2\,\sin \,{\theta _0}}}$

  • B

    $\frac{{IBR{\theta _0}}}{{\sin \,{\theta _0}}}$

  • C

    $IBR$

  • D

    $\frac{{IBR}}{{\,\sin \,{\theta _0}}}$

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