Q. The hysteresis loss in a D.C. machine least depends on (Solved)
1. Frequency of magnetic reversals
2. Maximum value of flux density
3. Volume and grade of iron
4. Rate of flow of ventilating air
- d. Rate of flow of ventilating air
1. Frequency of magnetic reversals
2. Maximum value of flux density
3. Volume and grade of iron
4. Rate of flow of ventilating air