Home
Class 11
PHYSICS
A very long straight wire of radius 'r c...

A very long straight wire of radius 'r carries current 'I'. Intensity of magnetic field 'B' at a point, lying at a perpendicular distance 'a' from the axis is `propto` ___________

A

`a^(2)`

B

`1/a^(2)`

C

`1/a`

D

a

Text Solution

Verified by Experts

The correct Answer is:
D
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|41 Videos

  • LAWS OF MOTION

    TARGET PUBLICATION|Exercise EXERCISE|281 Videos

  • MAGNETISM

    TARGET PUBLICATION|Exercise MCQs|147 Videos

Similar Questions

Explore conceptually related problems

A very long straight wire carries a current 5.2A. What is the magnitude of the magnetic field at a distance 3.1 cm from the wire?

A long straight wire carries a current of 35 A. What is the magnitude of the field (B) at a point 20 cm from the wire?

A long straight wire carries an electric current of 2A . The magnetic induction at a perpendicular distance of 5m from the wire is ( mu_(0)4 pi xx 10^(7)Hm^(-1))

What are the points on the x-axis whose perpendicular distance from the line x/a+y/b=1 is a

A circular coil having 50 turns each of radius 0.05 m carries a current of 1 A. The magnitude of magnetic induction at a point 0.2 m from its centre on its axis is

A circular coil having 50 turns each of radius 0.05 m carries a current of 1 A. The magnitude of magnetic induction at a point 0.2 m from its centre on its axis is

What is the magnetic field at a point 80 mm from a wire carrying current of 6A?

A long straight wire carries a current of pi amp . The magnetic field due to it will be 5xx10^(-5)"weber"//m^(2) at what distance from the wire [ mu_(0)= permeability of air]

TARGET PUBLICATION-MAGNETIC EFFECT OF ELECTRIC CURRENT -Competitive Thinking Introduction
  1. Two parallel very long straight wires carrying current of 5 A each are...

    Text Solution

    |

  2. Two long straight wires, each carrying current of 5.0 A, are kept para...

    Text Solution

    |

  3. An arrangement of three parallel straight wires placed perpendicular t...

    Text Solution

    |

  4. A rectangular loop carrying a current i is placed in a uniform magneti...

    Text Solution

    |

  5. A triangular loop of side l carries a current I. It is placed in a mag...

    Text Solution

    |

  6. A current i flows in a circular coil of radius r. If the coil is place...

    Text Solution

    |

  7. The magnetic moment of a current (i) carrying circular coil of radius ...

    Text Solution

    |

  8. A current loop in a magnetic field

    Text Solution

    |

  9. Magnetic dipole moment vecM of the coil, placed in uniform magnetic fi...

    Text Solution

    |

  10. A coil of 100 turns and area 2 xx 10^(-2) m^(2), pivoted about a verti...

    Text Solution

    |

  11. A metallic rod of mass per unit length 0.5 kg m^(-1) is lying horizont...

    Text Solution

    |

  12. When a proton is released from rest in a room, it starts with an initi...

    Text Solution

    |

  13. A uniform electric field and a uniform magnetic field are produced, po...

    Text Solution

    |

  14. A rectangular loop of sides 10cm and 5cm carrying a current I of 12A i...

    Text Solution

    |

  15. A conductor lies along the z-axis at -1.5 le z lt 1.5 m and carries a ...

    Text Solution

    |

  16. Two current carrying coils have radii r and 2r and have same magnetic ...

    Text Solution

    |

  17. A very long straight wire of radius 'r carries current 'I'. Intensity ...

    Text Solution

    |

  18. Magnetic induction produced at the centre of a circular loop carrying ...

    Text Solution

    |

  19. The electron in the hydrogen atom circles around the proton with a spe...

    Text Solution

    |

  20. If two streams of proton move parallel to each other in the same direc...

    Text Solution

    |