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Which of the following gives the value of magnetic field according to, Biot-Savart’s law’
  • A$\frac{{i\Delta l\sin \theta }}{{{r^2}}}$
  • B$\frac{{{\mu _0}}}{{4\pi }}\frac{{i\Delta l\sin \theta }}{r}$
  • C$\frac{{{\mu _0}}}{{4\pi }}\frac{{i\Delta l\sin \theta }}{{{r^2}}}$
  • D$\frac{{{\mu _0}}}{{4\pi }}i\Delta l\sin \theta $
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