The armature shaft of a D.C. motor must be able to withstand
A. any unbalanced magnetic pull on the armature core
B. twisting strains due to transmission of torque
C. bending moment due to the weight of the armature and commutator
D. all of the above
Answer:D
The armature shaft of a D.C. motor must be able to withstand
A. any unbalanced magnetic pull on the armature core B. twisting strains due to transmission of torque C. bending moment due to the weight of the armature and commutator D. all of the above