Figure (0) shows, in cross section, two long, parallel wires carrying current and separated by distance L. The ratio l1/l2 of their currents is 5.60; the directions of the currents are not indicated. Figure (b) shows the y component 3,, of their net magnetic eld along the x axis to the right of wire 2. The vertical scale is set by Bys = 6.5 nT, and the horizontal scale is set by x5 = 22.3 cm. (a) At what value of x > 0 is By maximum? (b) If i2 = 3.07 mA, what is the value of that maximum? What is the direction (into or out of the page) of (c) i1 and (d) i2? .r [cull t "l [b J