In Fig. 29-74a, two circular loops, with different
Chapter , Problem 60(choose chapter or problem)
In Fig. 29-74a, 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 By. That component is to be measured as loop 2 is gradually moved in the positive direction of the y axis. Figure 29-74b gives By as a function of the position y of loop 2. The curve approaches an asymptote of By ! 7.20 mT as y : .. The horizontal scale is set by ys ! 10.0 cm. What are (a) current i1 in loop 1 and (b) current i2 in loop 2?
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