Home
Class 12
PHYSICS
What is the unit of magnetic permeabilit...

What is the unit of magnetic permeability `mu_(0)` of vacuum?

A

`"Wb A"^(-1)m^(-1)`

B

`Wb^(-1)Am`

C

`WbAm^(-1)`

D

`WbA^(-1),`

Text Solution

Verified by Experts

The correct Answer is:
A
From Biot Savart.s law
`B=(mu_(0))/(4pi)(idl sin theta)/(r^(2))`
`mu_(0)=(4pi Br^(2))/(idl sin theta)=(Wb m^(-2)m^(2))/(Am)=WbA^(-1)m^(-1)`
Promotional Banner

Topper's Solved these Questions

  • PHYSICAL WORLD, UNITS AND MEASUREMENTS

    DISHA PUBLICATION|Exercise Exercise - 1 : Concept Builder (Topicwise)(Topic 2 : Errors in Measurements and Significant Figures)|28 Videos

  • PHYSICAL WORLD, UNITS AND MEASUREMENTS

    DISHA PUBLICATION|Exercise Exercise - 1 : Concept Builder (Topicwise)(Topic 3 : Dimensions of Physical Quantities)|22 Videos

  • PHYSICAL WORLD, UNITS AND MEASUREMENTS

    DISHA PUBLICATION|Exercise Exercise - 2 : Concept Applicator|30 Videos

  • OSCILLATIONS

    DISHA PUBLICATION|Exercise Exercise-2 : Concept Applicator|28 Videos

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    DISHA PUBLICATION|Exercise Exercise -2 : Concept Applicator|26 Videos

Similar Questions

Explore conceptually related problems

What are units of magnetic permeability?

The S.I. unit of magnetic permeability is

What is the SI unit of permeability

In terms of basic units of mass (M), length (L), time (T), and charge (Q), the dimensions of magnetic permeability of vacuum (mu_0) would be

The dimension of (B^(2))/(2mu_(0)), where B is magnetic field and mu_(0) is the magnetic permeability of vacuum, is :

What is relative magnetic permeability of superconductors?

Define magnetisation and magnetic intensity. Deduce the relation among relative magnetic permeability, permeability of vacuum and magnetic susceptibility. What is the value of susceptibility of a super conductor?

The dimensional formula for magnetic permeability mu is :

DISHA PUBLICATION-PHYSICAL WORLD, UNITS AND MEASUREMENTS-Exercise - 1 : Concept Builder (Topicwise)(Topic 1 : Units of Physical Quantities)
  1. ऊष्मीय चालकता की इकाई है

    Text Solution

    |

  2. The SI unit of electric polarization is

    Text Solution

    |

  3. What is the unit of magnetic permeability mu(0) of vacuum?

    Text Solution

    |

  4. The S.I. unit of latent heat is

    Text Solution

    |

  5. The unit of self inductance of a coil is

    Text Solution

    |

  6. The surface tension of a liquid is 70 "dyne" // cm . In MKS system its...

    Text Solution

    |

  7. Joule-second is the unit of

    Text Solution

    |

  8. The SI unit of Stefan's constant is :

    Text Solution

    |

  9. S.I. unit of universal gas constant is

    Text Solution

    |

  10. Young's modulus of steel is 1.9xx10^(11) N//m^2 When expressed is CGS ...

    Text Solution

    |

  11. Which one of the following pairs of quantities and their units is a pr...

    Text Solution

    |

  12. The numerical value of Young's modulus in S.I. unit is beta. what is i...

    Text Solution

    |

  13. If the units of length and force are increased by four times the unit...

    Text Solution

    |

  14. the density of a material is 8 g/cc. In a system in which units of len...

    Text Solution

    |

  15. If e is the charge, V the potential difference, T the temperature, the...

    Text Solution

    |

  16. In equation, r=m^(2)sin pit, where t represent time if the unit of m i...

    Text Solution

    |

  17. If x=at+bt^(2), where x is the distance travelled by the body in kilom...

    Text Solution

    |

  18. Which of the following quantities has not been expressed in proper uni...

    Text Solution

    |

  19. In the eqn. (p+(a)/(V^(2)))(V-b)= "constant" constant, the unit of a...

    Text Solution

    |

  20. In CGS system the magnitude of the force is 100 dyne.In another system...

    Text Solution

    |