In Figure a, two circular loops, with different currents but the same radius of 4.0 cm, are centered on a y axis. They are initially separated by distance L = 3.0 cm, with loop 2 positioned at the origin of the axis. The currents in the two loops produce a net magnetic field at the origin, with y component B y. That component is to be measured as loop 2 is gradually moved in the positive direction of the y axis. Figure b gives B y, as a function of the position y of loop 2. The curve approaches an asymptote of B y = 7.20μT as y ?? ??. The horizontal scale is set by y, = 10.0 cm. What are?

(a) Current i1 in loop 1 and

(b) Current i2 in loop 2?

20 -40 y (cm) (a) (b)