Electrical Machines
Torque angle of a synchorous machine operating from a constant voltage bus is usually defined as the space angle between

 Rotor mmf wave and resultant flux density wave.
 Stator mmf wave and resultant mmf wave.
  Rotor mmf wave and stator mmf wave.
 Stator mmf wave and resultant flux density.

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Electrical Machines
In a step down transformer which one of the following statements is true?

 Secondary power is less than primary power.
  Number of secondary turns is less than primary turns.
 Secondary current is less than primary current.
 Number of secondary turns is more than that of primary.

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