Electrical Machines
What is the emf generated by a 4 pole Lap connected DC Motor rotating at 1500 rpm having 1000 conductors and useful flux per pole is 0.4 mWb.

 40 volts.
 10 volts.
 30 volts.
 20 volts.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In a DC machine the armature mmf is

  stationary with respect to armature.
  stationary with respect to field poles.
 rotating with respect to field poles.
  rotating with respect to field poles as well as armature.

ANSWER DOWNLOAD EXAMIANS APP