NOVELTY - The rotating electric machine has a rotatably supported rotor (11) and a stator (34) which is provided with stator cores (34a) and coils (29). The stator cores are provided with individual divided tooth portions (28) and yoke portions (27). The tooth portions and yoke portions are divided at an angle with respect to the radial direction. The tooth portions are configured so as to be movable in the radial direction.    USE - Rotary electric machine e.g. electric motor used in wind power generator and vehicle (both claimed) such as electric vehicle. Can also be used in domestic electrical appliances such as vacuum cleaner.    ADVANTAGE - Since the space between yoke portions is changed with respect to the moving amount of a teeth portion, the induced-voltage constant and the inductance of a coil can be effectively reduced, and the rotary electric machine can be manufactured in suitable size. The teeth portion can be simply moved to radial direction by rotating ring-shaped components. The ring-shaped component need not require big space to move a teeth portion. Since the axial direction sides of teeth portion are mounted with the ring-shaped component, the rotary electric machine can be provided with a smooth movement of teeth portion. Since the motor is used to arbitrarily rotate the ring-shaped component, the high-quality of controllable rotary electric machine can be electrically provided. The amount of magnetic flux linked in coil can be effectively reduced. Since the pin can penetrate the teeth portion consisting of non-electroconductive material, the need for producing the electrical eddy current by the pin can be avoided. The ring-shaped magnetic-steel-sheet lamination components are provided in order to reduce the cogging torque of coil. Since the inner side of teeth portion can touch the magnetic-steel-sheet lamination component when the teeth portion is located in the innermost portion of coil, the cogging torque of coil can easily reduced. Since the rotary electric machine is made with suitable size, the wind force can be effectively converted into electric power and power consumption of electric machine can be reduced.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following:    (1) vehicle; and    (2) wind power generator.    DESCRIPTION OF DRAWING(S) - The drawing shows a right sectional view of the rotary electric machine.    Rotor (11)    Yoke portion (27)    Teeth portion (28)    Coil (29)    Stator (34)    Stator core (34a)