A thin conducting wire is bent into the shape shown in the figure. The circular portion of the wire has radius $13\mathrm{.}0$ cm $.$ The wire is in the plane of the screen and carries a current $2\mathrm{.}60$ A $.$ What is the magnetic field at the center of the loop? $($Give the magnitude in $\backslash (\backslash$mu $\backslash$mathrm$\{$T$\}\backslash )$ and select the direction from the options provided.$)$