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

`irvec(B)`

B

`2piri vec(B)`

C

zero

D

`pi ri vec(B)`

Text Solution

Verified by Experts

The correct Answer is:
3
The net force on curren carrying carrying loop in uniform magnetic field will be zero.
Promotional Banner

Topper's Solved these Questions

  • MOVING CHARGES AND MAGNETISM

    NARAYNA|Exercise Level-II(C.W)|63 Videos

  • MOVING CHARGES AND MAGNETISM

    NARAYNA|Exercise LEVEL-III|45 Videos

  • MOVING CHARGES AND MAGNETISM

    NARAYNA|Exercise C.U.Q-KEY|121 Videos

  • MAGNETISM AND MATTER

    NARAYNA|Exercise EXERCISE - 4 (SINGLE ANSWER TYPE QUESTION)|17 Videos

  • NUCLEAR PHYSICS

    NARAYNA|Exercise LEVEL-II-(H.W)|9 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

NARAYNA-MOVING CHARGES AND MAGNETISM-LEVEL-I(C.W)
  1. The magnetic induction at the centre of a solenoid is B. If the length...

    Text Solution

    |

  2. A proton is fired with a speed of 2xx10^(6)m//s at an angle of 60^(@) ...

    Text Solution

    |

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

    Text Solution

    |

  4. A proton enters a magnetic field with a velocity of 2.5 xx10^(7)ms^(-1...

    Text Solution

    |

  5. A doubly ionised He^(+2) atom travels at right angles to a magnetic fi...

    Text Solution

    |

  6. A proton is projected with a velocity 10^(7)ms^(-1), at right angles t...

    Text Solution

    |

  7. A proton of energy 2 MeV is moving perpendicular to uniform magnetic f...

    Text Solution

    |

  8. A cyclotron in which protons are accelerated has a flux density of 1.5...

    Text Solution

    |

  9. Cyclotron is adjusted to give proton beam, magnetic induction is 0.15 ...

    Text Solution

    |

  10. A cyclotron has an oscillator frequency 12MHz and a dee of radius 50cm...

    Text Solution

    |

  11. A straight wire ( conductor ) length 10cm is kept in a uniform magneti...

    Text Solution

    |

  12. A ciruclar coil of 20 turns and radius 10cm is placed in a uniform mag...

    Text Solution

    |

  13. A thin, 50 cm long metal bar with mass 750 g rests on, but is not attr...

    Text Solution

    |

  14. The magnitude of the force between a pair of conductors, each length 1...

    Text Solution

    |

  15. Two parallel conductors A and B separated by 5cm carry electric curren...

    Text Solution

    |

  16. The distance between the wires of electric mains is 12 cm. These wires...

    Text Solution

    |

  17. Two long straight conductors are held parallel to each other 7 cm apar...

    Text Solution

    |

  18. A rectangular coil of wire of 500 turns of area 10xx5cm^(2) carries a ...

    Text Solution

    |

  19. A coil of area 100cm^(2) having 500 turns carries a current of 1mA . I...

    Text Solution

    |

  20. A circular coil of 1 turn and area 0.01m^(2) carries a current of 10A....

    Text Solution

    |