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The commutator of a dc motor serves the purpose of
A homopolar generator usually has
The developed electromagnetic force and/or torqe in electromechanical energy conversion system act in a direction that tends
4 pole generator with 16 coils has a two layer lap winding.The pole pitch is
Width of a carbon brush should be equal to
Wave winding is employed in a dc machine of
The field coils of a dc generator are usually made of
For a linear electromagnetic circuit,the following statement is true
Wave winding is composed of
In a dc generator,the ripples in the direct emf generated are reduced by employing
Reluctance torque in rotating machines is present,when
Laminated yoke in dc motor can reduce
In electromechanical energy conversion devices(e.g. generators and motors),a small air gap is left between the stator and the rotor ignored to
Which of the following is not a part of dc machine?
A rotating electrical machine having its self inductance of both the stator and the rotor winding, independent of rotor position will definitely not developed
The commutator pitch for simplex wave winding is equal to
In a dc machine armature windind,the number of commutator segments is equal to the number of armature
The commutator pitch for simplex lap winding is
For a 4-pole machine wave winding is impossible with — armature conductors
The number of parallel paths for a 4-pole duplex lap winding will be
