A straight wire carrying a current of $14\,A$ is bent into a semicircular are of radius $2.2\,cm$ as shown in the figure. The magnetic field produced by the current at the centre $(O)$ of the arc. is $.........\,\times 10^{-4}\, T$
  • A$4$
  • B$6$
  • C$2$
  • D$8$
JEE MAIN 2023, Easy
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