We can employ dummy coils in a DC machine to _________
A. compensate reactance voltage
B. reduce armature reaction
C. provide mechanical balance to the armature
D. improve the waveforms generated inside the commutator
Answer:A
We can employ dummy coils in a DC machine to _________
A. compensate reactance voltage B. reduce armature reaction C. provide mechanical balance to the armature D. improve the waveforms generated inside the commutator