The hysterisis loss of a sample of iron is `300Jm^-3 cycl e^-1`. If density of iron is `7500kg//m^3` and mass of iron piece is `15kg`, calculate energy lost/hour when the frequency of magnetisation/demagnetisation used in `50c//s`.

The hysterisis loss of a sample of iron is `300Jm^-3 cycl e^-1`. If de

1.	The hysterisis loss of a sample of iron is `300Jm^-3 cycl e^-1`. If density of iron is `7500kg//m^3` and mass of iron piece is `15kg`, calculate energy lost/hour when the frequency of magnetisation/demagnetisation used in `50c//s`.
Answer» Correct Answer - `54xx10^4J//hour` Here, energy loss due to hysterisis `=300Jm^-3cycl e^-1` `rho=7500kg//m^3, m=15kg, v=50c//s` Energy lost/hour=? `V=m/rho=(15)/(7500)m^3=2xx10^-3m^3` Energy lost/cycle =`300xx2xx10^-3=06` Energy lost/sec`=06xx50=30J//s` Energy lost/hour=`30xx60xx60` `=54xx10^4J//hr`

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The hysterisis loss of a sample of iron is `300Jm^-3 cycl e^-1`. If density of iron is `7500kg//m^3` and mass of iron piece is `15kg`, calculate energy lost/hour when the frequency of magnetisation/demagnetisation used in `50c//s`.

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