The mass of a speciment of a ferromagnetic material is 0.6 kg. and its density is \[7.8\times {{10}^{3}}\,kg/{{m}^{3}}\]. If the area of hysteresis loop of alternating magnetising field of frequency 50Hz is 0.722 MKS units then the hysteresis loss per second will be

\[277.7\times {{10}^{-6}}\,joule\]

\[277.7\times {{10}^{-5}}\,joule\]

\[277.7\times {{10}^{-4}}\,joule\]

\[27.77\times {{10}^{-4}}\,joule\]

The mass of a speciment of a ferromagnetic material is 0.6 kg. and its

1.	The mass of a speciment of a ferromagnetic material is 0.6 kg. and its density is \[7.8\times {{10}^{3}}\,kg/{{m}^{3}}\]. If the area of hysteresis loop of alternating magnetising field of frequency 50Hz is 0.722 MKS units then the hysteresis loss per second will be
A.	\[277.7\times {{10}^{-5}}\,joule\]
B.	\[277.7\times {{10}^{-6}}\,joule\]
C.	\[277.7\times {{10}^{-4}}\,joule\]
D.	\[27.77\times {{10}^{-4}}\,joule\]
Answer» B. \[277.7\times {{10}^{-6}}\,joule\]