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.

Previous

If a current carrying coil is placed in a uniform magnetic field direction of magnetic induction, then

Next

Reluctance torque in rotating machines is present, when

Join The Discussion