An electric motor may include a plurality of stationary field coils. The
field coils are disposed so that they are overlap and are nested with
adjacent field coils. A portion of each coil is disposed above a portion
of an adjacent coil, and a portion of each coil is disposed beneath
another adjacent coil. The average radial distance of the coils from the
rotational center of the motor rotor is substantially the same. This
arrangement of coils facilitates rotation of the rotor at relatively high
speed for applications such as flywheel storage batteries because it
reduces or eliminates variations in the torque produced by the coils. In
an embodiment, the coils are bent so that they are nested. By bending the
coils, the coils overlap and the air gap within the motor is minimized.