Home
Class 12
PHYSICS
A current loop in a magnetic field...

A current loop in a magnetic field

A

Experiences a torque whether the field is uniform or non uniform in all orientations

B

Can be in equilibrium in one orientation

C

Can be in equilibrium in two orientations, both the equilibrium states are unstable

D

Can be in equilibrium in two orientations, one stable while the other is unstable

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • Electrostatics

    SARAS PUBLICATION|Exercise EXAMPLE|31 Videos
  • MODEL QUESTION PAPER -3

    SARAS PUBLICATION|Exercise EXERCISE|45 Videos

Similar Questions

Explore conceptually related problems

Derive an expression for torque on a current loop placed in a magnetic field .

Will a current loop placed in a magnetic field always experience a zero force?

A current carrying loop lying in a magnetic field behaves like a ….

A very long bar magnet is placed with its north pole coinciding with the centre of a circular loop carrying an electric current. i . The magnetic field due to the magnet at a point on the periphery of the wire is B . The radius of the loop is a . The force on the wire is

A current of 10.0 nA is established in a circular loop of radius 5.0 cm. find the magnetic dipole moment of the current loop. : The magnetic dipole moment is vec mu= veciA .

Show how a current loop acts as a magnetic dipole . Arrive at an expression for the magnetic dipole moment.

If a thin wire of length 88 cm is bent into a circular loop and a current of 1A is passed, a. What is the magnetic field at the centre? b. What is the magnetic field at the centre if the wire is bent into a semicircle and doubled on it? c. If the wire is looped into two loops, find the magnetic field at the centre.

Starting from the expression for the force on a current carrying conductor in a magnetic field, arrive at the expression for Lorentz magnetic force.

Changing magnetic fields can set up current loops in nearby metal bodies and the currents are called as:

SARAS PUBLICATION-MAGNETIC EFFECTS OF CURRENT AND MAGNETISM-EXAMPLE
  1. A coil of resistance 400 is placed in a magnetic field. If the magneti...

    Text Solution

    |

  2. When a proton is released from rest in a room, it starts with an initi...

    Text Solution

    |

  3. A current loop in a magnetic field

    Text Solution

    |

  4. A long straight wire carries a certain current and produces a magnetic...

    Text Solution

    |

  5. A circular coil ABCD carrying a current i is placed in a uniform magne...

    Text Solution

    |

  6. A bar magnet of magnetic moment M is placed at right angles to magneti...

    Text Solution

    |

  7. Copper of fixed volume V is drawn into a wire of length l. When this w...

    Text Solution

    |

  8. In a region, the potential is represented by V (x,y,z) = 6x - 8xy - 8y...

    Text Solution

    |

  9. In an ammeter 0.2% of main current passes through the galvanometer. If...

    Text Solution

    |

  10. Two identical long conducting wires AOB and COD are placed at right ...

    Text Solution

    |

  11. A thin semicircular conducting ring (PQR) of radius r is falling with ...

    Text Solution

    |

  12. A wire carrying current I has the shape as shown in adjoining figure. ...

    Text Solution

    |

  13. A rectanguIar coil of length 0.12 m and width 0.1m having 50 turns of ...

    Text Solution

    |

  14. A proton and an alpha particle both enter a region of uniform magnetic...

    Text Solution

    |

  15. A long solenoid has 1000 turns. When a current of 4A flows through it...

    Text Solution

    |

  16. A long straight wire of radius carries a steady current I. The current...

    Text Solution

    |

  17. A long wire carrying a steady current is bent into a circular loop of ...

    Text Solution

    |

  18. Magnetic field induction at athe cetre O of a square loop of side a ca...

    Text Solution

    |

  19. A long solenoid of diameter 0.1 m has 2 xx 10^4 turns per meter. At th...

    Text Solution

    |

  20. In an electromagnetic wave in free space the root mean square value of...

    Text Solution

    |