Explanation: The power input to the DC field winding is dissipated as i2R loss in the field winding (once the required field current is established). 8. What is the reason behind armature structure for both DC and AC machines being laminated?
A. reduce i2R losses
B. reduce the leakage flux
C. reduce the eddy current losses
D. for better operating power factor
Answer:A
Explanation: The power input to the DC field winding is dissipated as i2R loss in the field winding (once the required field current is established). 8. What is the reason behind armature structure for both DC and AC machines being laminated?
A. reduce i2R losses B. reduce the leakage flux C. reduce the eddy current losses D. for better operating power factor