For adjoining fig., The magnetic field at point, $P$ will be
  • A$\frac{\mu_0}{4 \pi} \odot$
  • B$\frac{\mu_0}{\pi} \otimes$
  • C$\frac{\mu_0}{2 \pi} \odot$
  • D$\frac{\mu_0}{2 \pi} \otimes$
AIPMT 2000, Medium
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