The armature of D.C. generator is laminated to_______________?
Correct answer: D. reduce eddy current loss
- A. reduce the bulk
- B. provide the bulk
- C. insulate the core
- D. reduce eddy current loss
Explanation
Laminating the armature core breaks up circulating paths for induced currents, greatly reducing eddy-current loss. The laminations are insulated from one another, but insulation is a means of achieving this loss reduction, not the main purpose stated here.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Electrical Machines
1,061 free Electrical Machines MCQs from Electrical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Electrical Engineering questions like this
Electrical Engineering is on 2 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Electrical Machines questions
Iron losses in a D.C. machine are independent of variations in______________?
In D.C. generators, current to the external circuit from armature is given through_____________?
Brushes of D.C. machines are made of_________?
Laminations of core are generally made of________________?
The commutator segments are connected to the armature conductors by means of___________?
The resistance of armature winding depends on