Home
Class 12
PHYSICS
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)Joul e`

B

`277.7xx10^(-6)Joul e`

C

`277.7xx10^(-4)`

D

`277.7xx10^(-3)`

Text Solution

Verified by Experts

The correct Answer is:
A
`W_(H) = Vaft`
`= (m)/(d)Aft`
`W_(H) = (0.6)/(7.8 xx 10^(3)) xx 0.722 xx 50`
`= 277.7 xx 10^(-5)` Joule
Promotional Banner

Topper's Solved these Questions

  • MAGNETISM

    NARAYNA|Exercise NCERT Based Questions|17 Videos

  • MAGNETISM

    NARAYNA|Exercise LEVEL-I (H.W)|30 Videos

  • MAGNETISM

    NARAYNA|Exercise LEVEL-II(C.W)|42 Videos

  • EXPERIMENTAL PHYSICS

    NARAYNA|Exercise Comprehension type|6 Videos

  • MAGNETISM AND MATTER

    NARAYNA|Exercise EXERCISE - 4 (SINGLE ANSWER TYPE QUESTION)|17 Videos

Similar Questions

Explore conceptually related problems

If the density of copper is 8.9xx10^(3)kg//m^(3) , find its relative density.

A uniform solid sphere has a radius 0.1 m and density 6 xx 10 ^ 3 kg/ m^ 3 . Find the moment of intertia about a tangent to its surface.

The magnetic moment of a magnet of mass 75 gm is 9xx10^(-7) A-m^(2) . If the density of the material of magnet is 7.5xx10^(3) kg m^(-3) , then find intensity of magnetisation is

The density of the material of a wire used in sonometer is 7.5 xx 10^(3) kg//m^(3) If these stress on the wire is 3.0 xx 10^(8)N//m^(3) the speed of transverse wave in the wire will be -

A bar magnetic made of steel has a magnetic moment of 2*5Am^2 and a mass of 6*6g . If density of stell is 7*9xx10^-3kg//m^3 , what is the intensity of magnetisation?

The weight of a body of mass 3 kg at a height of 12.8 xx 10^(6) m from the surface of the Earth is ______.

NARAYNA-MAGNETISM-LEVEL-III(C.W)
  1. A magnet is suspended in such a way that it oscillates in the horizont...

    Text Solution

    |

  2. A thin rectangular magnet suspended freely has a period of oscillation...

    Text Solution

    |

  3. A compose needle makes 10 oscillations per minute in the earths horizo...

    Text Solution

    |

  4. Two bar magnets are placed in vibration magnetometer and allowed to vi...

    Text Solution

    |

  5. With a standard rectangular bar magnet, the time period in the uniform...

    Text Solution

    |

  6. The relation between mu and H for a specimen of iron is mu=[(0.4)/(H)+...

    Text Solution

    |

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

    Text Solution

    |

  8. 300 turns of a thin wire are uniiformly wound on a permanent manet sha...

    Text Solution

    |

  9. At a temperature of 30^(@)C, the susceptibility of ferromagnetic mater...

    Text Solution

    |

  10. What will be the energy loss per hour in the iron core of a transforme...

    Text Solution

    |

  11. Find the percent increase in the magnetic field B when the space withi...

    Text Solution

    |

  12. A rod of ferromegnetic materical with dimensions 10cmxx0.5cmxx2cm is p...

    Text Solution

    |

  13. A magnetic material of volume 30cm^(3) is placed in a magnetic field ...

    Text Solution

    |

  14. The total magnetic flux in a material, which produces a pole of streng...

    Text Solution

    |

  15. Relative permitivity and permeability of a material epsilon(r) and mu(...

    Text Solution

    |

  16. The angle of dip at a place is delta. If the dip is measured in a plan...

    Text Solution

    |

  17. If theta1 and theta2 be the apparent angles of dip observed in two ver...

    Text Solution

    |

  18. A magnet makes 10 oscilllations per minute at a place where the angle ...

    Text Solution

    |

  19. At a place the earth's horizontal component of magnetic field is 0.36x...

    Text Solution

    |

  20. An iron rod is subjected to cycles of magnetisation at the rate of 50H...

    Text Solution

    |