Electrical Machines
In a dc machine, the demagnetizing effect of armature reaction is due to

 component of armature mmf along field axis
 uneven air-gap length
 non-sinusoidal nature of armature mmf
 magnetic saturation in half of the field pole

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Electrical Machines
Which of the following statements is/are correct statements?

All of these
 EMF per turn in both the windings are equal
 EMF per turn in HV winding is less than EMF per turn in LV winding
 EMF per turn in HV winding is more than EMF per turn in LV winding

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