Problem $2$

A Mechatronics Engineering student is working near a long straight power line carrying an electric current. This current generates a magnetic field in the surrounding space, with a magnetic field strength of $B=2\mathrm{.}37{10}^{-4}T$ measured at a distance of $d=3\mathrm{.}42cm$ from the wire. Determine the magnitude of the current in the wire.

$[4$ points$]$