Home
Class 12
PHYSICS
A conducting circular loop of radius r c...

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

`irB`

B

`2piriB`

C

zero

D

`piriB`

Text Solution

Verified by Experts

The correct Answer is:
C

In uniform magnetic field force acting on closed loop =zero
Promotional Banner

Topper's Solved these Questions

  • ELECTRODYNAMICS

    RESONANCE|Exercise Exercise-2 PART-1|15 Videos
  • ELECTRODYNAMICS

    RESONANCE|Exercise Exercise-2 PART-2|26 Videos
  • ELECTRODYNAMICS

    RESONANCE|Exercise Exercise-1 PART-1|81 Videos
  • ELECTRO MAGNETIC WAVES

    RESONANCE|Exercise Exercise 3|27 Videos
  • ELECTROMAGNETIC INDUCTION

    RESONANCE|Exercise A.l.P|19 Videos

Similar Questions

Explore conceptually related problems

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 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 radiius r carries a constant current i . It is placed in a uniform magnetic field vec(B)_(0) such that vec(B)_(0) is perpendicular to the plane of the loop . The magnetic force acting on the loop is

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 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 circular loop of wire is carring a current i (as shown in the figure). On applying a uniform magnetic field inward perpendicular to the plane of the loop, the loop

RESONANCE-ELECTRODYNAMICS-Exercise-1 PART-2
  1. Two parallel wires carry currents of 10 A and 40 A in opposite directi...

    Text Solution

    |

  2. For the circuit shown in figure the direction and magnitude of the for...

    Text Solution

    |

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

    Text Solution

    |

  4. A rectangular loop carrying a current i is situated near a long strai...

    Text Solution

    |

  5. A uniform magnetic field vec(B) = 3 hat i + 4 hat j + hat k exists in ...

    Text Solution

    |

  6. Two thin long parallel wires seperated by a distance 'b' are carrying...

    Text Solution

    |

  7. In the figure shown a current I(1) is established in the long straight...

    Text Solution

    |

  8. A steady current i flows in a small square lopp of wire of side L in a...

    Text Solution

    |

  9. A rod of length l having uniformly distributed charge Q is rotated abo...

    Text Solution

    |

  10. A bar magnet has a magnetic moment 2.5JT^(-1) and is placed in a magne...

    Text Solution

    |

  11. A circular loop of area 1cm^2 , carrying a current of 10 A , is placed...

    Text Solution

    |

  12. A power line lies along the east-west direction and carries a current ...

    Text Solution

    |

  13. A circular coil of radius 20 cm and 20 turns of wire is mounted vertic...

    Text Solution

    |

  14. Which materials have negative value of magnetic susceptibility?

    Text Solution

    |

  15. When a small magnetising field H is applied to a magnetic material the...

    Text Solution

    |

  16. The magnetic susceptibility of any paramagnetic material changes with ...

    Text Solution

    |

  17. A paramagnetic material is placed in a magnetic field. Consider the fo...

    Text Solution

    |

  18. Which of the following relations is not correct?

    Text Solution

    |

  19. The hysteresis cylcle for the material of a permanent magnet is

    Text Solution

    |

  20. When a ferromagnetic material goes through a hysteresis loop, the magn...

    Text Solution

    |