Electrical Machines
No load saturation characteristics are plotted between

 short circuit current and armature current
 short circuit current and field current
 no load voltage and field current
 no load voltage and armature current

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Electrical Machines
Cogging and crawling are phenomena associated with

 the former at a fraction of its rate speed and the latter during starting.
 the former during starting and the latter at a fraction of its rated speed.
 any of the above.
 cage induction machines and they are essentially the same.

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