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

remain 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

    FIITJEE|Exercise Assignment Problems (Assertion Reasoning Type)|2 Videos

  • MAGNETIC

    FIITJEE|Exercise Assignment Problems (Level - II)|20 Videos

  • MAGNETIC

    FIITJEE|Exercise Assignment Problems (Subjective) (Level - II & III)|15 Videos

  • LAWS OF MOTION

    FIITJEE|Exercise COMPREHENSION-III|2 Videos

  • MAGNETISM

    FIITJEE|Exercise Example|12 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.

FIITJEE-MAGNETIC-Assignment Problems (Objective) (LEVEL-I)
  1. A wire carrying a current i is placed in a uniform magnetic field in t...

    Text Solution

    |

  2. In the figure PQ is a long current carrying wire which is placed near ...

    Text Solution

    |

  3. AB and CD are long staright conductors, distance d apart, carrying a c...

    Text Solution

    |

  4. AB and CD are smooth, parallel rails, separated by a distance L and in...

    Text Solution

    |

  5. Two circular coils of radii 10 cm and 40 cm and equal number of turns ...

    Text Solution

    |

  6. A conducting circular loop of radius r carries a constant current I. I...

    Text Solution

    |

  7. In a certain region uniform electric field E and magnetic field B are ...

    Text Solution

    |

  8. A square loop of mass M side a and carrying current I(0) lies in the x...

    Text Solution

    |

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

    Text Solution

    |

  10. An electron moves staright inside a charged parallel plate capacitor o...

    Text Solution

    |

  11. A current of 1 A flows a wire of length 0.1 m in a magnetic field of 0...

    Text Solution

    |

  12. Torque acting on a current loop in a uniform magnetic field is equal t...

    Text Solution

    |

  13. If the current flowing in a circular loop is in clockwise directions, ...

    Text Solution

    |

  14. If the resistance of the upper half of rigid loop is twice that of the...

    Text Solution

    |

  15. If electron velocity is (2 hat(i) + 3 hat(j)) and it is subjected to a...

    Text Solution

    |

  16. A particle of mass m and charge q moves with a constant velocity v alo...

    Text Solution

    |

  17. A circular loop of mass m and radius r in X-Y plane of a horizontal ta...

    Text Solution

    |

  18. The wire loop shown in figure carries a current as shown. The magnetic...

    Text Solution

    |

  19. The magnetic field strength at a point P distant r due to an infinite ...

    Text Solution

    |

  20. A wire bent in the form of a sector of radius r subtending an angle th...

    Text Solution

    |