Electrical Machines
The armature of DC motor is laminated

 to reduce the eddy current loss.
 to reduce the inductor.
 to reduce the hysteresis loss.
 to reduce the mass.

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Electrical Machines
The synchronous reactance( Xs) is the

 reactance due to leakage flux
 combined reactance due to armature reaction and leakage flux
 reactance either due to armature reaction or leakage flux
 reactance due to armature reaction of the machine

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