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 equiliser rings
Correct Answer:
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Q15: Which of the following statement about D.C.
Q16: The demagnetising component of armature reaction in
Q17: Magnetic field in a D.C. generator is
Q18: The number of brushes in a commutator
Q19: Compensating windings are used in D.C. generators
A)mainly
Q20: Which of the following components of a
Q22: In D.C. generators, lap winding is used
Q23: Two generators A and B have 6-poles
Q24: The voltage drop for which of the
Q25: The e.m.f. generated by a shunt wound
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