A synchronous motor is running with normal excitation. When the load is increased, the armature current drawn by it increases because
Apower factor is decreased
Bspeed of the motor is reduced
Cnone of the above
DEr (net resultant voltage) in armature is increased
EEb (back e.m.f.) becomes less than V (applied voltage)
Correct answer
D. Er (net resultant voltage) in armature is increased
Explanation
The correct answer is Er (net resultant voltage) in armature is increased.