Hysteresis loss is NOT a function of

• A. Steinmetz co-efficient of material
• B. The volume of a material
• C. Frequency
• D. Ambient temperature

Answer: (D)

Hysteresis Loss = Kh × BM1.67 × f × v watts
where
Kh = Hysteresis constant depends upon the material
Bm = Maximum flux density
f = frequency
v = Volume of the core
Hence the hysteresis loss does not depend upon the ambient temperature.