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Chapter 29, Problem 024 The figure shows, in cross section, four thin wires that are parallel, straight, and very long. They carry identical currents ofi = 2.20 A in the directions indicated. Initially all four wires are at distance d = 13.9 cm from the origin of the coordinate system, where they create a net magnetic field b . (a) To what value of x must you move wire 1 along the x axis in order to rotate counterclockwise by 30°? (b) With wire 1 in that new position, to what value of x must you move wire 3 along the x axis to rotate B by 30° back to its initial orientation? 0 (a) Number Units (b) Number Units

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Page No. magmec til Ne: ам @on e-tol-TDtate ret inat netic-一7 hld be mved towars ろ 6 e) 0:63 x 108 -7.19= 8.27 )-二15.46

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