In a D.C. generator the ripples in the direct e.m.f. generated are reduced by
A. Using conductor of annealed copper
B. Using commutator with large number of segments
C. Using carbon brushes of superior quality
D. Using equalizer rings
Answer: Option C
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Related Questions on D.C. Generators
A cumulatively compounded long shunt generator when operating as a motor would be
A. Cumulatively compounded long shunt
B. Differentially compounded long shunt
C. Cumulatively compounded short shunt
D. Differentially compounded short shunt
A. Demagnetization only
B. Cross magnetization as well as magnetization
C. Cross-magnetization as well as demagnetizing
D. Cross magnetization only
wrong ans correct ans is B
you are right kalpana ans must be B bcoz no. Of commutator segment is equal to no. Of armature coil so that by connecting coil in series it will reduce ripple in emf
answer must be B
In a DC generator the ripples in the direct emf generated are reduced by using commutator with large number of segments. This is because commutator with large number of segments will rectify the AC emf generated in the armature to direct emf in a better way.