Electrical Machines
The self induced emf in the coil undergoing commutation is called the

None of these
  reactance voltage.
  statically induced voltage.
  dynamically induced voltage.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In synchronous generator, inverted V curve is drawn between

 field current on X-axis and armature current on Y-axis
 field current on Y-axis and armature current on X-axis
 field current on Y-axis and power factor on X-axis
 field current on X-axis and power factor on Y-axis

ANSWER DOWNLOAD EXAMIANS APP