Q.

In a dc machine, fractional pitch winding is employed to

  • Aincrease generated voltage
  • Breduce sparking 
  • Csave copper
  • Dboth (b) and (c) 
Correct Answer : (D)

both (b) and (c) 

Hints :

In a dc machine, fractional pitch winding is employed to reduce sparking  and save copper.

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