cmf generated by A.C dynamo depends upon_____________?
Correct answer: D. all of above
- A. number of turns in the coil
- B. magnetic field strength
- C. frequency of rotation
- D. all of above
Explanation
For an AC dynamo, generated emf is proportional to the number of turns, magnetic flux or field strength, and rotational speed or frequency. Therefore, all three listed factors affect the emf.
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
Power loss in actual transformer is due to_________________?
The emf induced in a conductor of unit length moving with unit velocity at right angles to a magnetic field is equal to_____________?
A small coil lies inside a large coil. The two coils are horizontal concentric and carry currents in opposite directions. The large coil will experience______________?
Belted slip ring induction motor is almost invariably used for_________________?
The travelling speed of cranes varies from_________________?
The cost of an induction motor will increase as________________?