The core (or iron) losses, in a dc machine occur due to
A. eddy current loss only.
B. hysteresis loss only.
C. both hysteresis and eddy current losses.
D. air friction only.
Answer:C
The core (or iron) losses, in a dc machine occur due to
A. eddy current loss only. B. hysteresis loss only. C. both hysteresis and eddy current losses. D. air friction only.