Home
Class 12
PHYSICS
The relative permeability (mu(r)) of a f...

The relative permeability `(mu_(r))` of a ferromagnetic substance varies with tamperature `(T)` according to the curve

A

`A`

B

`B`

C

`C`

D

`D`

Text Solution

Verified by Experts

The correct Answer is:
C

Theory based
Promotional Banner

Topper's Solved these Questions

  • MAGNETISM AND MATTER

    A2Z|Exercise Problems Based On Mixed Concepts|37 Videos
  • MAGNETISM AND MATTER

    A2Z|Exercise Section B - Assertion Reasoning|16 Videos
  • MAGNETISM AND MATTER

    A2Z|Exercise Magnetic Equipments|58 Videos
  • GEOMETRICAL OPTICS

    A2Z|Exercise Section D - Chapter End Test|30 Videos
  • MOCK TEST

    A2Z|Exercise Mock Test 3|44 Videos

Similar Questions

Explore conceptually related problems

Magnetic permeability of ferromagnetic substance is

The relative permeability of a ferromagnetic material is 500 what is its magnetic susceptibility

The specific heat of a substance varies with temperature according to c =0.2 +0.16 T + 0.024 T^(2) with T in "^(@)c and c is cal//gk . Find the energy (in cal) required to raise the temp of 2g substance from 0^(@)to 5^(@)C

The specific heat of a substance varies with temperature according to the function c = 0.20 + 0.14 T + 0.023T^(@) , with T in ""^(@)C and c in Cal//g.K , Find the energy required to raise the temperature of 1.0g of this substance from 5.0 ""^(@)C to 15""^(@)C .

In Fig. X represents time and Y represent activity of a radioactive sample. Then the activity of sample, varies with time according to the curve

The optical properties of a medium are governed by the relative permittivity (epsi_(r)) and relative permeability (mu_(r)) . The refractive index is defined as sqrt(mu_(r)epsi_(r))=n . For ordinary material, epsi_(r) gt 0 and mu_(r) gt 0 and the positive sign is taken for the squre root. In 1964, a Russian scientist V. Veselago postualted the existance of material with epsi_(r) lt 0 and mu_(r) lt 0 . Since, then such metamaterial have been produced in the laboratories and their optical properties studied. For such materials n= - sqrt(mu_(r) epsi_(r)) . As light enters a medium of such refractive index the phases travel away from the direction of propagation. (i) According to the description above show that if rays of light enter such a medium from air ( refractive index =1) at an angle theta in 2nd quadrant, then the refracted beam is in the 3rd quadrant. (ii) Prove that Snell's law holds for such a medium.

A2Z-MAGNETISM AND MATTER-Magnetic Materials
  1. Diamagnetic subtance are

    Text Solution

    |

  2. The given figure represents a material which is

    Text Solution

    |

  3. The magnetic susceptibility of any paramagnetic material changes with ...

    Text Solution

    |

  4. The magnetic susceptibility is

    Text Solution

    |

  5. The unit for molar susceptibility is

    Text Solution

    |

  6. Relative permeability of iron is 5500, then its magnetic susceptibilit...

    Text Solution

    |

  7. The susceptibility of magnesium at 300 K is 1.2 xx 10^(-5). At what te...

    Text Solution

    |

  8. Magnetic permeability is maximum for

    Text Solution

    |

  9. If a diamagnetic solution is poured into a U-tube and one aem of this ...

    Text Solution

    |

  10. The relative permeability is represented by mu(r) and the susceptibili...

    Text Solution

    |

  11. The relative permeability (mu(r)) of a ferromagnetic substance varies ...

    Text Solution

    |

  12. If the angular momentum of an electron is vec(J) then the magnitude of...

    Text Solution

    |

  13. For an isotropic medium B, mu, H and M are related as (where B, mu(0),...

    Text Solution

    |

  14. When a piece of a ferromagnetic sobstance is put in a uniform magnetic...

    Text Solution

    |

  15. The basic magnetization curve for a ferromagnetic material is shown in...

    Text Solution

    |

  16. If the magnetic dipole of moment of an atom of diamagnetic material, p...

    Text Solution

    |

  17. The use of study of hysteresis curve for a given material is to estima...

    Text Solution

    |

  18. Which of the following statement is incorrect about hysteresis?

    Text Solution

    |

  19. For substance hysteresis (B-H) curve are as shown in figure. For makin...

    Text Solution

    |

  20. The figure illustrate how B, the flux density inside a sample of unmag...

    Text Solution

    |