Home
Class 12
PHYSICS
As shown in the figure four identical lo...

As shown in the figure four identical loops are placed in a uniform magnetic field `vecB` the lopps carry equal current I .`vecn` denotes the normal to the plane of each loop.potential energies in descending order are

A

I,III,II,IV

B

IV,II,III,I

C

I,III,II,IV

D

IV,III,II,I

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATICS-I, II AND III

    PATHFINDER|Exercise QUESTION BANK|290 Videos

  • MAGNETISM AND MATTER

    PATHFINDER|Exercise QUESTION BANK|32 Videos

Similar Questions

Explore conceptually related problems

A wire loop of area A is placed in a uniform magnetic field B so that the directio of B is parallel to the plane of the coil. If B changes with time the emf induced in the loop will be

A conducting circular loop of radius r carries a constant current l. It is placed in a ukniform magnetic field vecB such that vecB is perpendicular to the place of the loop. The magnetic force 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 vec(B) such that vec(B) is perpendicular to the plane of the loop. The magnetic force acting on the loop is

Each side of a hexagonal loop of a metal wire is a. The loop carries a current I. Find the magnitude of the magnetic field at the centre of the loop

A conducting loop in the form of a circle is placed in a uniform magnetic field with its plane perpendicular to the direction of the field. An emf will be induced in the loop if

Two wires of equal length are bent in the from of two loops. One of the loops is a square wheres the other loop is circular. These are suspended in a uniform magnetic field and the same current is passed through them. Which loop will experience greater torque ?

Consider a wire carrying a steady current I placed in a uniform magnetic field vecB . Consider the charges inside the wire. It is known that magnetic forces do no work. This implies that

As shown in the figure. a wire is bent to form a 1 - shaped closed loop. carrying current I . where the curved part is a semi - circle of radius R . The loop is placed in a uniform magnetic field vec(B) . which is directed into the plane of the paper . The magnetic force felt by the closed loop is

Calculate the torque acting on a rectangular coil carrying current I placed in a uniform magnetic field when the plane of the coil is perpendicular to the magnetic lines of force.

A rectangular coil carrying current I is placed in a uniform magnetic field B such that the direction of B is perpendicular to the plane of the coil. Calculate the torque experienced by the coil.

PATHFINDER-MAGNETIC EFFECT OF CURRENT AND ELECTROMAGNETISM-I,II AND III-QUESTION BANK
  1. In the figure shown a coil of single turn is wound on a sphere of radi...

    Text Solution

    |

  2. An electron moves straight inside a charged parallel plate capacitor o...

    Text Solution

    |

  3. As shown in the figure four identical loops are placed in a uniform ma...

    Text Solution

    |

  4. If a magnet of pole strength m is divided into four parts such that th...

    Text Solution

    |

  5. If a bar magnet of magnetic moment M is freely suspended in a uniform ...

    Text Solution

    |

  6. A magnet of magnetic moment M is situated with its axis along the dire...

    Text Solution

    |

  7. Two identical thin bar magnets each of length l and pole strength m ar...

    Text Solution

    |

  8. The work done by an external agent in turning a magnet of magnetic mom...

    Text Solution

    |

  9. A short bar magnet placed with its axis at 30^@ with a uniform externa...

    Text Solution

    |

  10. A magnet of magnetic moment 50hatiA-m^2 is placed along the x axis in ...

    Text Solution

    |

  11. A bar magnet of magnetic moment 3.0Am^2 is placed in a uniform magneti...

    Text Solution

    |

  12. A bar magnet when placed at an angle of 30^@ to the direction of magne...

    Text Solution

    |

  13. A magnet of magnetic moment 2J/T is alligned in the direction of magne...

    Text Solution

    |

  14. Earth's magnetic field always has a horizontal component except at

    Text Solution

    |

  15. If the angles of dip at two places are 30^@ and 45^@ respectively then...

    Text Solution

    |

  16. A dip circle is at right angle to the magnetic meridian what will be t...

    Text Solution

    |

  17. The earth's magnetic field at a certain place has a horizontal compone...

    Text Solution

    |

  18. Lines which represent places of constant angle of dip are called

    Text Solution

    |

  19. The resulting magnetic field at the point O due to the current carryin...

    Text Solution

    |

  20. A long straight wire of radius R carries a steady current whichis unif...

    Text Solution

    |