The external characteristic is plotted between ____________
A. terminal voltage vs armature current at constant excitation
B. terminal voltage vs field current at constant armature current
C. induced armature emf vs armature current at constant excitation
D. none of the mentioned
Answer:A
The external characteristic is plotted between ____________
A. terminal voltage vs armature current at constant excitation B. terminal voltage vs field current at constant armature current C. induced armature emf vs armature current at constant excitation D. none of the mentioned