Bissoy.com
Doctors Medicines MCQs Q&A

A soft iron multi-toothed rotor and wound stator is present in _______

A soft iron multi-toothed rotor and wound stator is present in _______ Correct Answer variable reluctance stepper motor

Variable reluctance stepper motor consists of a soft iron multi-toothed rotor and a wound stator. When the stator windings are energized with DC current, the poles become magnetized, and the teeth of the rotor are attracted towards the energized stator poles, and hence the rotor rotates. The other motors present in the options do not consist of such elements.

Related Questions

A soft iron multi-toothed rotor and wound stator is present in ___
In the following question, sentences of a paragraph have been jumbled and labelled as A, B, C and D. You are required to rearrange the jumbled sentences of the paragraph and mark your response accordingly by selecting the correct option. A: An induction motor can, therefore, be made without electrical connections to the rotor. B: Three-phase squirrel-cage induction motors are widely used as industrial drives because they are self-starting, reliable and economical. C: An induction motor's rotor can be either wound type or squirrel-cage type. D: An induction motor or asynchronous motor is an AC electric motor in which the electric current in the rotor needed to produce torque is obtained by electromagnetic induction from the magnetic field of the stator winding.
Which of the following equation best represents the mutual inductance between stator and rotor in a single phase cylindrical rotor synchronous machine? (where θr= space angle between stator and rotor field axis)
An electromechanical energy conversion device has cylindrical stator but salient pole rotor. Rotor is not excited. If δ is the angle between stator field and rotor long axis, then average torque developed is proportional to (A and B are constants).
Given below are quantities named A,B and C. Based on the given information, you have to determine the relation between the quantities. You should use the given data and your knowledge of mathematics to choose among the possible answer. Akash’s present age is six years less than Badshah’s age after nine years. The ratio of present age of Badshahand RAFTAAR is 5:9. Raftaar is 21 years younger than Denny and Denny is three years older than Honey. Square of the Honey’s present age is 1350 more than 15 times of Honey’s present age? Quantity A: What is the difference between AKASH’s present age and HONEY’s age after 16 years? Quantity B: After 6 years Mankirat’s age is twice that of Akash’s present age. Diljeet’s present age is 3.5 times of 25% of sum of present age of Mankirat and A. What is the present age of Diljeet? Quantity C: Twice of A’s present age is eight years more than that of Babbu’spresent age, then find the Babbu’s present age?
Which of the following statements are true about soft power?
1. Soft power can be used by state actors.
2. Soft power can be used by non-state actors.
3. Soft power is the second face of power.
4. Soft power is a form of idealism.
Select the correct answer:
An electromechanical energy conversion device has cylindrical stator but salient pole rotor. If δ is the angle between stator field and rotor field, the average torque developed is proportional to (A and B are constants) __________
In a three-phase cage induction motor when a full voltage is applied to the stator winding, the rotor fails to start because the number of stator and rotor slots are either equal or have an integral ratio. Determine the phenomenon mentioned in the above context.
Consider the following statements: 1. Salient pole alternators have small diameters and large axial lengths. 2. Cylindrical rotor alternators have a distributed winding 3. Cylindrical rotor alternators are wound for large number of poles 4. Salient pole alternators runs at speeds slower than cylindrical rotor machines Which of the above statements are correct?
A center ammeter connected to the rotor end circuit of a 6-pole,50 Hz, induction motor makes 45 complete oscillations in a minute. Then the rotor speed and the speed of stator field w.r.t. rotor is?