Home
Class 12
PHYSICS
A triangular loop of side l carries a cu...

A triangular loop of side `l` carries a current `I`. It is placed in a magnetic field `B` such that the plane of the loop is in the direction of `B`. The torque on the loop is

A

Zero

B

`IB1`

C

`(sqrt3)/(2)Il^(2)B^(2)`

D

`(sqrt3)/(4)IBl^(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
Since `theta=90^(@)`
Hence `tau=NIAB=1xx1xx((sqrt3)/(4)l^(2))B`
`(sqrt3)/(4)l^(2)B`
Promotional Banner

Topper's Solved these Questions

  • SOURCE AND EFFECT OF MAGNETIC FIELD

    A2Z|Exercise Magnetic Field Due To Current|44 Videos

  • SOURCE AND EFFECT OF MAGNETIC FIELD

    A2Z|Exercise Magnetic Field Due To Circular Arc|69 Videos

  • SOURCE AND EFFECT OF MAGNETIC FIELD

    A2Z|Exercise Force On A Current Carrying Conductor In Magnetic Field|42 Videos

  • SEMICONDUCTOR ELECTRONICS

    A2Z|Exercise EXERCISE|29 Videos

  • WAVE OPTICS

    A2Z|Exercise Section D - Chapter End Test|29 Videos

Similar Questions

Explore conceptually related problems

A triangle loop of side l carries a steady current. It is placed in a magnetic field B such that normal of the place of loop is in the direction of B, the torque on the loop is ________

A conducting circular loop of radius r carries a constant current i. It is placed in a uniform magnetic field B such that B is parallel to the plane of the loop. The magnetic torque acting on the loop is-

A square loop of side l carries a current i. it is placed as shown in figure. Find the magnetic moment of the loop.

A rectangular loop carrying a current i is placed in a uniform magnetic field B. The area enclosed by the loop is A. If there are n turns in the loop, the torque acting on 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

A conducting circular loop of radius r carries a constant current i.It is placed in a uniform magnetic field B such that B is perpendicular to the plane of the loop. The magnetic force acting on the loop is

A2Z-SOURCE AND EFFECT OF MAGNETIC FIELD-Magnetic Dipole
  1. A small coil of N turns has an effective area A and carries a current ...

    Text Solution

    |

  2. Four wires each of length 2.0 meters area bent into four loops P,Q,R a...

    Text Solution

    |

  3. A current carrying loop is free to turn in a uniform magnetic field.Th...

    Text Solution

    |

  4. A rectangular coil 20cmxx20cm has 100 turns and carries a current of 1...

    Text Solution

    |

  5. In hydrogen atom, the electron is making 6.6xx10^(15) rev//sec around ...

    Text Solution

    |

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

    Text Solution

    |

  7. Due to the flow of current in a circular loop of radius R, the magneti...

    Text Solution

    |

  8. A circular loop of area 0.01 m^(2) carrying a current of 10 A, is held...

    Text Solution

    |

  9. Current i is carried in a wire of length L. If the wire is turned into...

    Text Solution

    |

  10. A particle of the charged q and mass m moves in a circular orbit of ra...

    Text Solution

    |

  11. The magnetic moment of a current carrying loop is 2.1xx10^(-25) ampxxm...

    Text Solution

    |

  12. A ring of radius R, made of an insulating material carries a charge Q ...

    Text Solution

    |

  13. Current I flows through the circuit, as shown. Find the magnetic momen...

    Text Solution

    |

  14. A wire of cross-sectional area A forms three sides of a square and is ...

    Text Solution

    |

  15. The plane of a rectangular loop of wire with sides 0.05 m and 0.08 m i...

    Text Solution

    |

  16. A constant current I is flowing through a circular coil placed in unif...

    Text Solution

    |

  17. A wire is bent into three segments each of radius r. Each segment is a...

    Text Solution

    |

  18. A wire of length L is shaped into a circle and then folded as shown. M...

    Text Solution

    |

  19. Figure. shows one quarter of a simple circular loop of wire that carri...

    Text Solution

    |

  20. A conducting ring of mass 2kg and radius 0.5m is placed on a smooth pl...

    Text Solution

    |