An electric machine, comprising: a rotor; and a stator disposed near to the rotor, wherein the stator comprises at least a first stator unit and at least a second stator unit disposed adjacent to each other; wherein, the rotor has a rotating direction or a moving direction with respect to the stator, and the first stator unit and the second stator unit are misaligned and adjacently disposed to each other along the rotating direction or the moving direction; wherein the first stator unit has a first body, at least a first coil, a first tooth and a second tooth, the first tooth and the second tooth are protruded from the first body to form a C-shaped magnetic yoke, the first coil is wound on at least one of the first tooth, the second tooth or the first body, the second stator unit has a second body, at least a second coil, a third tooth and a fourth tooth, the third tooth and the fourth tooth are protruded from the second body to form a C-shaped magnetic yoke, and the second coil is wound on at least one of the third tooth, the fourth tooth or the second body, the first tooth and the third tooth are adjacently disposed to each other along the rotating direction or the moving direction, the substantial protruding directions of the first tooth and the third tooth respectively form a first angle and a third angle with a radial direction, with respect to the rotating direction or the moving direction, of the rotor, and the first angle and the third angle are different; wherein, the first tooth and the third tooth are substantially connected or substantially have no gap therebetween along the rotating direction or the moving direction, the second tooth and the fourth tooth are substantially connected or substantially have no gap therebetween along the rotating direction or the moving direction; wherein, when the rotor rotates or moves, an effective perpendicular to the airgap magnetic flux area between a sector of the rotor and the first and second stator units substantially remains unchanged. a rotor; and a stator disposed near to the rotor, wherein the stator comprises at least a first stator unit and at least a second stator unit disposed adjacent to each other; wherein, the rotor has a rotating direction or a moving direction with respect to the stator, and the first stator unit and the second stator unit are misaligned and adjacently disposed to each other along the rotating direction or the moving direction; wherein the first stator unit has a first body, at least a first coil, a first tooth and a second tooth, the first tooth and the second tooth are protruded from the first body to form a C-shaped magnetic yoke, the first coil is wound on at least one of the first tooth, the second tooth or the first body, the second stator unit has a second body, at least a second coil, a third tooth and a fourth tooth, the third tooth and the fourth tooth are protruded from the second body to form a C-shaped magnetic yoke, and the second coil is wound on at least one of the third tooth, the fourth tooth or the second body, the first tooth and the third tooth are adjacently disposed to each other along the rotating direction or the moving direction, the substantial protruding directions of the first tooth and the third tooth respectively form a first angle and a third angle with a radial direction, with respect to the rotating direction or the moving direction, of the rotor, and the first angle and the third angle are different; wherein, the first tooth and the third tooth are substantially connected or substantially have no gap therebetween along the rotating direction or the moving direction, the second tooth and the fourth tooth are substantially connected or substantially have no gap therebetween along the rotating direction or the moving direction; wherein, when the rotor rotates or moves, an effective perpendicular to the airgap magnetic flux area between a sector of the rotor and the first and second stator units substantially remains unchanged.