Electrical Machine MCQ – DC Machine #3

Electrical Machine MCQ – DC Machine

Electrical Machine MCQ DC Machine #3 

DC Machine MCQ

31) When a current carrying conductor is placed in magnetic field which force is produced?
32) When mechanical force is applied on the ferromagnetic material, there is change in the magnetic properties. This phenomenon is called
33) The direction of force produced due to current carrying conductor place in magnetic field is found out by
34) In single layer winding, number of slots equal to the number of __________.
35) The efficiency of large dc machines is about
36) Classify the dc motor according to connection of field winding.
37) The field winding is connected in parallel with the armature is known as ________.
38) In series dc motor the field winding is connected in _________.
39) Sparking at the brushes is due to
40) The inter poles in dc motors is connected in
Electrical Machine MCQ – DC Machine #3
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