Home
Class 12
PHYSICS
The figure shows the cross-section of a ...

The figure shows the cross-section of a long cylindrical conductor of radius a carrying a uniformly distributed current i. The magnetic field due to current at P is :

A

mu_(0)ir//(2pia^2))

B

`mu_(0)ir^(2)//(2pia)`

C

`mu_(0)ia//(2pir^(2))`

D

`mu_(0)ia^(2)//(pir^(2))`

Text Solution

Verified by Experts

The correct Answer is:
A
`B=(mu_(0)Ir)/(2piR^(2))` for `0ltrlt R` for cylindrical conductor
Promotional Banner

Topper's Solved these Questions

  • MAGNETIC EFFECTS OF CURRENT

    VMC MODULES ENGLISH|Exercise LEVEL 2|50 Videos

  • MAGNETIC EFFECTS OF CURRENT

    VMC MODULES ENGLISH|Exercise JEE Main (Archive)|75 Videos

  • MAGNETIC EFFECTS OF CURRENT

    VMC MODULES ENGLISH|Exercise LEVEL 0 (LONG ANSWER TYPE )|3 Videos

  • LIQUIDS

    VMC MODULES ENGLISH|Exercise JEE ADVANCED (LEVEL -2)|55 Videos

  • MOCK TEST 1

    VMC MODULES ENGLISH|Exercise PART I : PHYSICS (SECTION-2)|10 Videos

Similar Questions

Explore conceptually related problems

Figure shows a cross-section of a long ribbon of width omega that is carrying a uniformly distributed total current i into the page. Calculate the magnitude and direction of the magnetic field B at a point P in the plane of the ribbon at a distance d from its edge.

Figure shows the cross-sectional view of the hollow cylindrical conductor with inner radius 'R' and outer radius '2R' , cylinder carrying uniformly distributed current along it's axis. The magnetic induction at point 'P' at a distance (3R)/2 from the axis of the cylinder will be

AB and CD are long staright conductors, distance d apart, carrying a current I . The magnetic field on BC due to the currents in AB and CD

The figure shown the cross section of a long cylindrical conductor through which an axial hole of radius r is drilled with its centre at point A . O is the centre of the conductor. If the identical hole were to be drilled centred at point B while maintaining the same current density the magnitude of magnetic field at O

A long thick conducting cylinder of radius 'R' carries a current uniformly distributed over its cross section :

The figure shows the cross section of two long coaxial tubes carrying equal current I in opposites directions. If B_1 and B_2 are magnetic fields at point 1 and 2 as shown in figure then

AB and CD are long straight conductor, distance d apart, carrying a current l. The magnetic field at the midpoint of BC is

Shown in the figure is a conductor carrying a current i. the magnetic field at the origin is :

A long straight wire of a circular cross section (radius a ) carrying steady current. Current is uniformly distributed in the wire. Calculate magnetic field inside the region (r lt a) in the wire.

A current i is uniformly distributed over the cross section of a long hollow cylinderical wire of inner radius R_1 and outer radius R_2 . Magnetic field B varies with distance r form the axis of the cylinder is

VMC MODULES ENGLISH-MAGNETIC EFFECTS OF CURRENT -LEVEL 1
  1. A uniform thin rod mass m and length R is placed normally on surface o...

    Text Solution

    |

  2. If a long hollow copper pipe carries a current, then magnetic field is...

    Text Solution

    |

  3. The figure shows the cross-section of a long cylindrical conductor of ...

    Text Solution

    |

  4. A straight wire of diametre 0.5 mm carrying a current of 1 A is replac...

    Text Solution

    |

  5. Two large conducting planes carrying current perpendicular to X-axis a...

    Text Solution

    |

  6. An electron moves in a circular orbit with a uniform speed v. It produ...

    Text Solution

    |

  7. A particle of mass M and charge Q moving with velocity vec(v) describe...

    Text Solution

    |

  8. Which of the following statements is correct ?

    Text Solution

    |

  9. A proton is moving along the negative direction of X-axis in a magneti...

    Text Solution

    |

  10. Four charged particles are projected perpendicularly into the magnetic...

    Text Solution

    |

  11. A proton is moving along the negative direction of X-axis in a magneti...

    Text Solution

    |

  12. Two prticles A and B having equal charges, after being accelerated thr...

    Text Solution

    |

  13. An electron accelerated through a potential difference V passes throug...

    Text Solution

    |

  14. Four particles, each with mass m are arranged symmetrically about the ...

    Text Solution

    |

  15. In the previous question,if the particle has-Q charge the time spend b...

    Text Solution

    |

  16. An electron is moving along the positive x-axis . A uniform electr...

    Text Solution

    |

  17. A charged particle moves along a circle under the action of possible c...

    Text Solution

    |

  18. A charged particle moves in a magnetic field vecB=10hati with initia...

    Text Solution

    |

  19. An electron is projected at an angle theta with a uniform magnetic fie...

    Text Solution

    |

  20. A charged particle enters a unifrom magnetic field with velocity vec...

    Text Solution

    |