Home
Class 12
PHYSICS
A circular flexible loop of wire of radi...

A circular flexible loop of wire of radius r carrying a current I is placed in a uniform magnetic field B . If B is doubled, then tension in the loop

A

remains unchanged

B

is doubled

C

is halved

D

becomes 4 times

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • MAGNETIC FIELD AND FORCES

    DC PANDEY|Exercise Assertion and reason|20 Videos
  • MAGNETIC FIELD AND FORCES

    DC PANDEY|Exercise Match the following|4 Videos
  • MAGNETIC FIELD AND FORCES

    DC PANDEY|Exercise Check point|54 Videos
  • INTERFERENCE AND DIFFRACTION OF LIGHT

    DC PANDEY|Exercise Level 2 Subjective|5 Videos
  • MAGNETICS

    DC PANDEY|Exercise MCQ_TYPE|1 Videos

Similar Questions

Explore conceptually related problems

A small circular flexible loop of wire of radius r carries a current I . It is placed in a uniform magnetic field B . The tension in the loop will be doubled if (Choose the incorrect option)

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 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 loop. What is the magnetic force acting on the loop?

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

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

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

A circular loop of radius 0*2m carrying a current of 1A is placed in a uniform magnetic field of 0*5T . The magnetic field is perpendicular to the plane of the loop. What is the force experienced by the loop?

A circular loop of radius a, carrying a current I, is placed in a tow dimensional magnetic field. The centre of the loop coincides with the centre of the filed The strenght of the magnetic field at the pariphery of the loop is B. find the magnetic force on the wire.

DC PANDEY-MAGNETIC FIELD AND FORCES-Taking it together
  1. Magnetic field produced at the point O due to current flowing in an in...

    Text Solution

    |

  2. Two identical coils carry equal currents have a common centre and thei...

    Text Solution

    |

  3. A circular flexible loop of wire of radius r carrying a current I is p...

    Text Solution

    |

  4. An electron moves in a circular orbit with a uniform speed v.It produc...

    Text Solution

    |

  5. Two wires of same length are shaped into a square and a circle. If the...

    Text Solution

    |

  6. Two particles X and Y with equal charges, after being accelerated thro...

    Text Solution

    |

  7. Two long thin wires ABC and DEF are arranged as shown in Fig. They car...

    Text Solution

    |

  8. A circular conductor of uniform resistance per unit length, is connect...

    Text Solution

    |

  9. Figure shows, three long straight wires parallel and equally speed wit...

    Text Solution

    |

  10. A, B and C are parallel conductors of equal length carrying currents I...

    Text Solution

    |

  11. Three long, straight and parallel wires are arranged as shown in Fig. ...

    Text Solution

    |

  12. A current of 10 ampere is flowing in a wire of length 1.5m. A force of...

    Text Solution

    |

  13. An ionized gas contains both positive and negative ions . If it is sub...

    Text Solution

    |

  14. A charged particle P leaves the origin with speed v=v0 at some inclina...

    Text Solution

    |

  15. The rectangular coil of area A is in a field B. Find the torque about ...

    Text Solution

    |

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

    Text Solution

    |

  17. Two infinitely long conductors carrying equal currents are shaped as ...

    Text Solution

    |

  18. A particle of mass m and having a positive charge q is projected from ...

    Text Solution

    |

  19. A 100 turns coil shown in figure carries a current of 2 amp in a magne...

    Text Solution

    |

  20. H^(+), He^(+) and O^(++) all having the same kinetic energy pass thro...

    Text Solution

    |