At a given instant a particle with charge $q=15C$ is located at $x=2\mathrm{.}0m,y=5\mathrm{.}0$ m ; its velocity at that time is $v=40\frac{m}{s}$hat$(i).$ If you are at the origin, what do you measure as the magnitude of the magnetic field due to this moving point charge?

$3\mathrm{.}8$ pT

$1\mathrm{.}9$ pT

$5\mathrm{.}9$ pT

$4\mathrm{.}1$ pT

$2\mathrm{.}7$ pT