Q 12-05-023NEETJEE MainEasy
The area of the hysteresis loop of a ferromagnetic material is a measure of
Answer: (B) the energy lost as heat per unit volume per cycle
The area enclosed by the B-H loop equals the energy dissipated per unit volume in one cycle of magnetisation. Soft iron has a thin loop, so transformer cores lose little energy.
Solution by Sreeraj P, M.Sc Physics