Home
Class 12
PHYSICS
Magnetic field at a distance r from an i...

Magnetic field at a distance r from an infinitely long straight conductor carrying steady varies as

A

a point charge

B

an electric dipole

C

a plane infinite sheet of charge

D

a line charge for infinite length

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • ELECTRONS AND PHOTONS

    NIKITA PUBLICATION|Exercise MCQs|162 Videos

  • GRAVITATION

    NIKITA PUBLICATION|Exercise Multiple Choice Questions|409 Videos

Similar Questions

Explore conceptually related problems

Calculate the magnetic field at a distance of 5 cm from an infinite straight conductor carrying a current of 10 A.

The magnetic flux denisty B at a distance r from a long stright rod carrying a steady current varies with r as show in the

Calculate the value of magnetic field at a distance of 2 cm from a very long straight wire carrying a current 5 A

Using Ampere's circuital law, obtain an expression for the magnetic induction at a point near an infinitely long straight conductor carrying an electric current.

Calculate the magnetic field at a point P. 0.5 m away from an infinitely long straight wire carrying current of 90 A.

The magnetic induction at a distance r from a straight, infinitely long wire in air and carrying a current I is given by

A conductor AB of length 10 cm at a distance of 10cm from an infinitely long parallel conductor carrying a current 10A . What work must be done to move AB to a distance of 20cm if it carries 5A ?

The magnetic field at a perpendicular distance of 2cm from an infinite straight current carrying conductor is 2xx10^-6T . The current in the wire is

NIKITA PUBLICATION-ELECTROSTATICS-Multiple Choice Questions
  1. In going from the surface of a charged conducting sphere towards the c...

    Text Solution

    |

  2. An electron and a proton are freely situated in an electric field. Wil...

    Text Solution

    |

  3. Magnetic field at a distance r from an infinitely long straight conduc...

    Text Solution

    |

  4. Who observed that a material named Amber is rubbed with wool, acquires...

    Text Solution

    |

  5. The net charge of electrified glass rod silk system, ebonite rod-wool ...

    Text Solution

    |

  6. Electricity on the moist day

    Text Solution

    |

  7. The work done in bringing a unit positive charge from infinity to the ...

    Text Solution

    |

  8. The strength of electric field at a point is represented by a scalar, ...

    Text Solution

    |

  9. The work require to displace charge q from infinity to given point is ...

    Text Solution

    |

  10. Electric potential is a …………….. Quantity and its units are …………… .

    Text Solution

    |

  11. Which of the following is a volt :

    Text Solution

    |

  12. An equipotential surface is that surface on which each and every point...

    Text Solution

    |

  13. Two plates are 2cm apart, a potential difference of 10 volt is applied...

    Text Solution

    |

  14. The neagative gradient of potential at any point in electric field is

    Text Solution

    |

  15. Electric intensity is directed along the direction at which electric p...

    Text Solution

    |

  16. When a charge is moved against the Coulomb's force of an electric fiel...

    Text Solution

    |

  17. In bringing an electron towards another electron, the electrostatic po...

    Text Solution

    |

  18. The correct relation between electric intensity E and electric potenti...

    Text Solution

    |

  19. Statement I: If electric potential in certain region is constant, then...

    Text Solution

    |

  20. If a unit positive charge is taken from one point to another over an e...

    Text Solution

    |