Engine 2014: Electricity

1. A Each has three separate but identical, interconnected stator windings (one for each phase) acted on by one system of rotating magnets.
2. B Each has one stator winding acted on by three separate but identical, interconnected systems of rotating magnets (one for each phase).
3. C Each has one stator winding acted on by one system of rotating magnets.
4. D Each has three separate but identical, interconnected stator windings (one for each phase) acted on by three separate but identical, interconnected systems of rotating magnets (one for each phase).

Tip: press A-D to answer