Electrical Machines
The speed of a DC series motor is

 Proportional to the armature current.
 Proportional to the square of the armature current.
 Inversely proportional to the armature current.
 Proportional to field current.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In a DC machine the armature mmf is

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

ANSWER DOWNLOAD EXAMIANS APP