Home
Class 12
PHYSICS
Hysterisis loss for a sample of 120kg is...

Hysterisis loss for a sample of `120kg` is `300Jm^-3//cycl e`. Frequency of supply is `50cycl e//s`. If density of iron is `7500kg//m^3`, find energy loss in 60 minutes.

Text Solution

Verified by Experts

Here, `m=120kg`
Hysterisis loss `=300Jm^-3//cycl e`.
Frequency `=50c//s`
Density of iron `=7500kg//m^3`
Total time =`60 mins=60xx60s`
Volume of specimen `=(mass)/(density)=(120)/(7500)m^3`
Loss of Loss of `en ergy//cycl e=300xx(120)/(7500)=360/75`
Loss of `en ergy//sec=360/75xx50`
Total loss of energy `=360/75xx50xx60xx60`
`=240xx3600`
`=86*4xx10^4J`
Promotional Banner

Topper's Solved these Questions

  • MAGNETIC EFFECT OF CURRENT AND MAGNETISM

    PRADEEP|Exercise Conceptual Problems (d)|2 Videos

  • MAGNETIC EFFECT OF CURRENT AND MAGNETISM

    PRADEEP|Exercise Very Short Answer Questions (a)|2 Videos

  • ELECTROSTATICS

    PRADEEP|Exercise ASSERTION-REASON TYPE QUESTIONS|2 Videos

  • OPTICS

    PRADEEP|Exercise Multiple choice questions|1 Videos

Similar Questions

Explore conceptually related problems

The hyterisis loss for a sample of 12kg is 300Jm^-3cycl e^-1 . If density of iron is 7500kg//m^3 , calculate energy loss per hour at 50cycl e//sec .

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 hysteresis loss for a specimen of iron weighing 15kg is equivalent at 300Jm^(-3)cycle^(-1) Find the loss of energy per hour at 25 cycle s^(-1) . Density of iron is 7500kg m^(-3)

For a specimen of iron weighing 15 kg the hysteresis loss is equivalent to 400 Jm^(-3) /cycle. Calculate the loss of energy per hour at 60 cycle/ s. Take density of iron = 7,500 kg//m^3

An iron sample weighing 8*4kg is taken through repeated cycles of magnetisation and demagnetisation at a frequency of 50c//s . In 30 minutes, energy dissipated as heat in the sample is 3*2xx10^4J . If density of iron is 7200kg//m^3 , what is the energy dissipated per unit volume per cycle?

A specimen of iron weighing 6kg loses 8*64xx10^4J of energy per hour when subjected to 50c//s a.c. If density of iron is 6000km//m^3 , what is the hysterisis loss per unit volume per cycle?

An iron sample having mass 8*4kg is repeatedly taken over cycles of magnetisation and demagnetisation at a frequency of 50cps . It is found that energy of 3*2xx10^4J is dissipated as heat in the sample in 30 minutes. If the density of iron is 7200kg//m^3 , calculate the value of energy dissipated per unit volume per cycle in the iron sample.

What will be the energy loss per hour in the iron core of a transformet if the area of its hysteresis loop isequivalent to 2500erg//cm^(3) . The frequence of alternating current is 50 Hz , The mass of core is 10 kg and the density of iron is 7.5gm//cm^(3) .

In a cylindrical container water is filled up to a height of h_(0)=1.0m . Now a large number of small iron balls are gently dropped one by one into the container till the upper layer of the balls touches the water surface. if average density of the contents is rho=4070 kg//m^(3) , density of iron is rho_(i)=7140kg//m^(3) and density of iron is rho_(0)=1000kg//m^(3) find the height h of the water level (in S.I. units) in the container with the iron balls.

A magnet of magnetic moment 2*5Am^2 weighs 66g . If density of material of the magnet is 7500 kg//m^3 , find the intensity of magnetisation.