Constructional Features of Rotating Electrical Machines – 1

Field winding carries which of the following current?

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

The rating of the armature winding is ___________

Armature winding carries which of the following current?

Current in the field winding is ___________

Armature winding is one in which working __________

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

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

The power rating of the field winding is _______

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