AC Electric Motors

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Across 3. Relationship between input and output power 7. Speed of stator rotating magnetic field 10. Name of losses in winding due to electrical resistance 11. Process of producing a voltage in an electrically seperate winding 12. This is considered to issue from ends of a magnet 13. Rotor windings are connected to these 14. Name of losses due to drah of bearings 17. Speed of rotation is measured in this 19. Formula used to calculate force on a conductor 21. Causes movement of conductor 22. Name given to the rotational part of the motor 23. Name of losses due to cooling fan and parts rotaing in air

Down 1. Most common type of 3 pahse motor 2. Difference between rotor speed and stator rotating field 4. Type of switch used in single phase motor 5. This type of rotor is used to produce high starting torque 6. Name given to the stationary component which contains the windings 8. Make contact with the slip-rings 9. Rule which can be used to determine direction of magnetic flux 15. Brushes are made from this material 16. Force on the conductor is measured in this 18. Names given to the ends of a magnet 20. Name of magnetic losses in motor

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