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The mass of a specimen of a ferromagneti...

The mass of a specimen of a ferromagnetic material is 0.6 kg. and its density is `7.8 xx 10^(3) kg//m3`. 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

`277.7xx10^(-5)` Joule

B

`277.7xx10^(-6)` Joule

C

`277.7xx10^(-4)` Joule

D

`277.7xx10^(-4)` Joule

Text Solution

Verified by Experts

`W_(H)=VAft`
`=(m)/(d)Aft or`
`W_(H)=(0.6)/(7.8xx10^(3))xx0.722xx50=277.7xx10^(-5)` Joule
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MOTION-MAGNETISM -EXERCISE-4 (LEVEL-II)
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