Two long straight thin wires with current lie against an equally long plastic cylinder, at radius R = 20.0 cm from the cylinder's central axis. Figure ??a?? shows, in cross section, the cylinder and wire 1 but not wire 2. With wire 2 fixed in place, wire 1 is moved around the cylinder, from angle θ1 = 0? to angle θ1 = 180?, through the first and second quadrants of the xy coordinate system. The net magnetic field E at the center of the cylinder is measured as a function of θ1. Figure ??b?? gives the x component Bx of that field as a function of θ1 (the vertical scale is set by Bx s = 6.0μT), and Figure c gives the y component 8, (the vertical scale is set by B y s = 4.0μT).

(a) At what angle θ2 is wire 2located? What are the

(b) Size and

(c) Direction (into or out of the page) of the current in wire 1 and the

(d) Size and

(e) Direction of the current in wire 2?

Wire 1 (a) B, -B 180 90 90 180 (b) (e) (1) "a