Stator

A stator comprising:

• a stator core;
• a coil attached to the stator core;
• and
• a magnetic sensor configured to output a detection signal that corresponds to magnetism generated by a current flowing through the coil,
• wherein the magnetic sensor is attached to the stator core,
• a plurality of the coils are provided in multiple phases,
• each of the plurality of coils in the multiple phases includes a plurality of coil sections,
• the stator further comprises a switching part configured to switch connection states of the plurality of coil sections included in each of the coils,
• the magnetic sensor outputs the detection signal that corresponds to magnetism generated by a current flowing through the coil sections,
• the plurality of coil sections of each of the coils include a first coil section through which a current flows regardless of the connection state, and a second coil section configured to switch between a conductive state, in which a current flows, and a non-conductive state, in which no current flows, depending on the connection state, and
• the magnetic sensor outputs the detection signal that corresponds to magnetism generated by a current flowing through the second coil section.