Home
Class 11
PHYSICS
The magnetic field due to current in a s...

The magnetic field due to current in a straight wire segment of length L at a point on its perpendicular bisector at a distance `r ( r gt gt L)`

A

decreases as `1/r`

B

decreases as `t/r^(2)`

C

decreases as `1/r^(3)`

D

approaches a finite limit as `r to infty`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    TARGET PUBLICATION|Exercise Evaluation Test|12 Videos

  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    TARGET PUBLICATION|Exercise Critical Thinking Introduction|38 Videos

  • FRICTION IS SOLIDS AND LIQUIDS

    TARGET PUBLICATION|Exercise MCQ (EVALUATION TEST)|21 Videos

  • MAGNETISM

    TARGET PUBLICATION|Exercise MCQs|150 Videos

Similar Questions

Explore conceptually related problems

Derive an expression fro the gravitational field due to a unifrom rod of length L and M at a point on its perpendicular bisector at a distance d from the centre.

Draw the magnetic field lines due to a straight wire carrying current.

Magnetic Field Due To A Current Carrying Straight Conducting Wire

Find the magnetic field at a point P on the perpendicular bisector of the current carrying conductor :-

The moment of inertia of a uniform cylinder of length l and radius R about its perpendicular bisector is I . What is the ratio l//R such that the moment of inertia is minimum ?

Introduction|BIOT-SAVART Law|Field due to a straight current carrying wire|When point P is on the perpendicular bisector|When the point lies along the length of wire

Consider a straight piece of length x of a wire carrying a current i. Let P be a point on the perpendicular bisector of the piece, situated at a distance d from its middle point. Show that for dgtgtx, the magnetic field at P varies as ( 1/d^2) whereas for dltltx, it varies as 1/d.

Calculate the magnetic field induction at a point distance, (asqrt(3))/(2) metre from a straight wire of length 'a' metre carrying a current of i amp. The point is on the perpendicular bisector of the wire.

TARGET PUBLICATION-MAGNETIC EFFECT OF ELECTRIC CURRENT -Competitive Thinking Introduction
  1. A region surrounding a stationary electric dipoles has

    Text Solution

    |

  2. The magnetic field near a current carrying conductor is given by

    Text Solution

    |

  3. The magnetic field due to current in a straight wire segment of length...

    Text Solution

    |

  4. Two indentical long conducting wires AOB and COD are placed at right a...

    Text Solution

    |

  5. A long straight wire carrying current of 30 A is placed in an exte...

    Text Solution

    |

  6. A current carrying circular loop is freely suspended by a long thread....

    Text Solution

    |

  7. A current of 0.1 A circulates around a coil of 100 turns and having a ...

    Text Solution

    |

  8. A circular loop of radius 'r' of conducting wire connected with a Volt...

    Text Solution

    |

  9. A long wire carries a steady curent . It is bent into a circle of one ...

    Text Solution

    |

  10. The dipole moment of a circular loop carrying a current I, is m and th...

    Text Solution

    |

  11. Two concentric coils each of radius equal to 2 pi cm are placed at rig...

    Text Solution

    |

  12. Magnetic field due to a ring having n turns at a distance x on its axi...

    Text Solution

    |

  13. The magnetic field due to a current carrying circular loop of radius 3...

    Text Solution

    |

  14. The magnetic induction at the centre of a current carrying circular co...

    Text Solution

    |

  15. A circular coil of radius R carries a current i. The magnetic field at...

    Text Solution

    |

  16. Magnetic fields at two points on the axis of a circular coil at a dist...

    Text Solution

    |

  17. If a proton is projected in a direction perpendicular to a uniform mag...

    Text Solution

    |

  18. A charged particle moving with velocity vis subjected to electric fiel...

    Text Solution

    |

  19. A charged particle is moved along a magnetic field line. The magnetic ...

    Text Solution

    |

  20. A particle of mass 'm' and charge 'q' is incident on XZ plane with vel...

    Text Solution

    |