A method for constructing a conductor assembly of the type formed of one or more coil rows which, when conducting current, generate a magnetic field or in which, in the presence of a changing magnetic field, a voltage is induced. In one embodiment comprises forming a conductor pattern in a first coil row according to the relationship X(θ)=[h/(2*π)]θ+ΣAn sin(nθ+φn) Y(θ)=R cos(θ) Z(θ)=R sin(θ), the first coil row pattern suitable for simultaneously generating at least two multipole orthogonal field components of different orders, wherein: X is measurable along an X axis, Y is measurable along a Y axis and Z is measurable along a Z axis, the coil row extends along the X axis, the coil row is formed with a conductor configured in a series of turns about the X axis creating spaced-apart segments of the conductor such that, along first portions of the segments, individual segments are relatively straight and along second portions of the segments the segments follow a contour having a definable radius of curvature, the series of turns providing a geometrical configuration for generating a first multipole component of order n=i with An=Ai and φn=φi and a second multipole component of order n=j with An=Aj and φn=φj with φi not equal to φj.