Discussion Forum : Dc Motors
Question -  Which condition out of the five given below is not required for the build-up of a shunt generator?
Options:
A .  there must be sufficient residual magnetism in the poles
B .  for the given direction of rotation, shunt field coils should be corectly connected to the armature
C .  if excited on open circuit, the shunt field resistance should be more than the critical resistance
D .  armature speed should be more than the critical speed
Answer: Option D

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