Why is the air gap between stator and rotor should be kept as small as mechanically possible in induction motor?

What is the reason behind armature structure for both DC and AC machines being laminated?

Current in the field winding is ___________

The power rating of the field winding is _______

The rating of the armature winding is ___________

Field winding carries which of the following current?

Which of the following two windings produces/induces the working flux and working EMF respectively?

Armature winding is one in which working __________

4. Which of the following statements are correct regarding exciting current?
(i) exciting current varies with the load
(ii) exciting current doesn’t vary with load
(iii) exciting current produces only a working magnetic flux
(iv) exciting current is not responsible for the production of working magnetic flux

Armature winding carries which of the following current?