Home
Class 12
PHYSICS
A symmetric star shaped conducting wire ...

A symmetric star shaped conducting wire loop is carrying a steady state current I as shown in the figure. The distance between the diametrically opposite vertices of the star is 4a. The magnitude of the magnetic field at the center of the loop is

A

`(mu_(0)l)/(4pia)3[2-sqrt(3)]`

B

`(mu_(0)l)/(4pia)6[sqrt(3)-1]`

C

`(mu_(0)l)/(4pia)3[sqrt(3)-1]`

D

`(mu_(0)l)/(4pia)6[sqrt(3)+1]`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • MAGNETISM

    MOTION|Exercise EXERCISE-4 (LEVEL-I)|33 Videos

  • LOGIC GATES

    MOTION|Exercise EXERCISE - 2|10 Videos

  • MAGNETISM -1

    MOTION|Exercise Exercise - 3 SECTION -A|56 Videos

Similar Questions

Explore conceptually related problems

A square loop of side a carris a current I . The magnetic field at the centre of the loop is

A conducting wire carrying current I is shown in the figure. The magnitude of magnetic field at the point P will be

A circular loop of radius 9.7 cm carries a current 2.3 A. Obtain the magnitude of the magnetic field at the centre of the loop .

A wire bent in the shape of a regular n-polygonal loop carries a steady current I. Let l be the perpendicular distance of a given segment and R be the distance of vertex both from the centre of the loop. The magnitude of the magnetic field at the centre of the loop is given by -

A square conducting loop of side length L carries a current I.The magnetic field at the centre of the loop is

The wire loop shown in figure carries a current as shown. The magnetic field at the centre O is ,

A rectangular loop of metallic wire is of length a and breadth b and carries a current i. The magnetic field at the centre of the loop is

A star shaped loop ( with l= length of each section ) carries current i. Magnetic field at the centroid of the loop is

A square loop is carrying a steady current I and the magnitude of its magnetic dipole moment is m.If this square loop is changed to a circular loop and it carries the same current the magnitude of the magnetic dipole moment of circular loop will be

MOTION-MAGNETISM -EXERCISE-4 (LEVEL-II)
  1. Consider the motion of a positive point charge in a region where area ...

    Text Solution

    |

  2. A cylinderical cavity of diameter a exists inside a cylinder of diamet...

    Text Solution

    |

  3. A loop carrying current I lies in the x-y plane as shown in the figu...

    Text Solution

    |

  4. An infinitely long hollow coducting cylinder with inner radius R/2 an...

    Text Solution

    |

  5. Two short bar magnets of length 1cm each have magnetic moments 1.20 Am...

    Text Solution

    |

  6. A particle of massM and positive charge Q, moving with a constant velo...

    Text Solution

    |

  7. A steady current I flows along an infinitely long hollow cylindrical c...

    Text Solution

    |

  8. The figure shows a circular loop of radius a with two long parallel wi...

    Text Solution

    |

  9. The figure shows a circular loop of radius a with two long parallel wi...

    Text Solution

    |

  10. Two parallel wires in the plane of the paper are distance X(0) apart. ...

    Text Solution

    |

  11. The coercivity of a small magnet where the ferromagnet gets demagnetis...

    Text Solution

    |

  12. A conductor (shown in the figure) carrying constant current I is kept ...

    Text Solution

    |

  13. In a thin rectangular metallic strip a constant current I flows along ...

    Text Solution

    |

  14. In a thin rectangular metallic strip a constant current I flows along ...

    Text Solution

    |

  15. Consider two identical galvanometers and two identical resistors with ...

    Text Solution

    |

  16. A symmetric star shaped conducting wire loop is carrying a steady stat...

    Text Solution

    |

  17. Two infinitely long straight wires lie in the xy-plane along the line...

    Text Solution

    |

  18. In the XY- plane , the region y gt 0 has a uniform magnetic field B1 ...

    Text Solution

    |

  19. A moving coil galvanometer has 50 turns and each turn has an area 210 ...

    Text Solution

    |

  20. Conducting wire of parabolic shape, initially y=x^(2) is moving with ...

    Text Solution

    |