Magnetic properties of matterMedium

Question

The area of hysteresis loop of a material is equivalent to 250 Joule. When 10 kg material is magnetised by an alternating field of 50Hz then energy lost in one hour will be if the density of material is 7.5 gm/cm3.

Options

A.6 × 104 Joule
B.6 × 104 Erg
C.3 × 102 Joule
D.3 × 102 Erg

Solution

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