A small, square locp carries a $60$ A current. The magnetic field strength $77$ cm above the center of the loop perpendicular to the plane of the loop is $2\mathrm{.}3$ nT $.$ What is the edge length of the square? $($Recall that the magnitude of the dipole moment is I.A$).$

$9\mathrm{.}4{10}^{-3}m$

$9\mathrm{.}4-{10}^{-1}$

$9\mathrm{.}4{10}^{-3}m$

$3\mathrm{.}4{410}^{-2}=$

$9\mathrm{.}4{10}^{-1}m$