The hysteresis loss in a D.C. machine least depends on

The hysteresis loss in a D.C. machine least depends on

Q. The hysteresis loss in a D.C. machine least depends on

A.            Frequency of magnetic reversals

B.            Maximum value of flux density

C.            Volume and grade of iron

D.            Rate of flow of ventilating air

Answer: Rate of flow of ventilating air

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