One Long Wire Carries a Current of 30 a Along

Multiple Choice

One long wire carries a current of 30 A along the entire x axis. A second long wire carries a current of 40 A perpendicular to the xy plane and passes through the point (0, 4, 0) m. What is the magnitude of the resulting magnetic field at the point y = 2.0 m on the y axis?

A) 4.0 μT
B) 5.0 μT
C) 3.0 μT
D) 7.0 μT
E) 1.0 μT