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A very long conducting wire is bent in a semicircular shape from $A$ to $B$ as shown in figure. The magnetic field at point $P$ for steady current configuration is given by:
  • A$\frac{\mu_0 i }{4 R }\left[1-\frac{2}{\pi}\right]$ pointed into the page
  • B$\frac{\mu_0 i }{4 R }$ pointed into the page
  • C$\frac{\mu_0 i }{4 R }$ pointed away from the page
  • D$\frac{\mu_0 i }{4 R }\left[1-\frac{2}{\pi}\right]$ pointed away from page
NEET 2023, Medium
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