(Solved): A thin conducting wire is bent into the shape shown in the figure. The circular portion of the wir ...

A thin conducting wire is bent into the shape shown in the figure. The circular portion of the wire has radius \( 18.0 \mathrm{~cm} \). The wire is in the plane of the screen and carries a current \( 4.00 \mathrm{~A} \). What is the magnetic field at the center of the loop? (Give the magnitude in \( \mu \) T and select the direction from the options provided.)