Equalizer rings in D.C. generator with lap windings are used for
- A. Equal distribution of current at brush for sparkless commutation
- B. Prevention of harmonics
- C. Reduction of noise and vibration
- D. Avoiding overhang
Answer: A. Equal distribution of current at brush for sparkless commutation
Explanation: Equalizer rings connect points in a lap-wound armature that are at identical potentials, bypassing circulating currents away from the brushes and ensuring sparkless commutation.