The magnetic field on the axis of a circular loop of radius $R = 100\,cm$ carrying current $I = \sqrt{2}\,A$,at a point $x = 1\,m$ away from the centre of the loop is given by:

  • A
    $3.14 \times 10^{-7}\,T$
  • B
    $6.28 \times 10^{-7}\,T$
  • C
    $3.14 \times 10^{-4}\,T$
  • D
    $6.28 \times 10^{-4}\,T$

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