Home
Class 12
PHYSICS
Two circular loops of equal radii are pl...

Two circular loops of equal radii are placed coaxially at some separation. The first is cut and a battery is inserted in between to drive a current in it. The current changes slightly because of the variation in resistance with temperature. Durig this period, the two loops

A

attract each other

B

repel each other

C

do not exert any force on each other

D

attract or repel each other depending on the sense of the current

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    DC PANDEY|Exercise Medical entrance special format questions|17 Videos

  • ELECTROMAGNETIC INDUCTION

    DC PANDEY|Exercise Match the columns|5 Videos

  • ELECTROMAGNETIC INDUCTION

    DC PANDEY|Exercise Check point|60 Videos

  • CURRENT ELECTRICITY

    DC PANDEY|Exercise Medical entrances gallery|97 Videos

  • ELECTROMAGNETIC WAVES

    DC PANDEY|Exercise Sec C|22 Videos

Similar Questions

Explore conceptually related problems

Two circular loops are placed coaxially but separated by a distance. A battery is suddenly connected to one of the loops establishing a current in it. Will there be a current induced in the other loop? If yes, when does the current start and when does it end? Do the loops attract each other or do they repel?

A short magnet is moved along the axis of a conducting loop. Show that the loop repels the magnet if the magnet is approaching the loop and attracts the magnet if it is going away from the loop. Two circular loops are placed coaxially but separted by a distance. A baattery is suddenly connected ot one of the loops establishing a current in it. Will there be a current induced in the other loop? If yes, when does the current start and when does it end? Do the loops attract each other or do they repel?

Two resistors having equal resistances are joined in series and a current is passed through the combination. Neglect any variation in resistance as the temperature changes. In a given time interval,

Two circular loops of equal radii are placed, one vertically and other horizontally with a common center. The current flowing is clock-wise in both and has same magnitude. The direction of magnetic field at the center :

Two circular coils A and B are placed close to each other. If the current in the coil A is changed, will some current be induced in the coil B? Give reason.

Two circular loops A and B of radii R and 4R are kept concentrically in the same plane. The loops carry currents I_(1) and I_(2) respectively. If the magnetic field at a point on the common axis of the loops at a distance 2R from their common centre is zero, the ratio (I_(1))/(I_(2)) is _________.

DC PANDEY-ELECTROMAGNETIC INDUCTION-Taking it together
  1. A coil having 500 square loops each of side 10 cm is placed normal to ...

    Text Solution

    |

  2. A coil having an area 2m^(2) is placed in a magnetic field which chang...

    Text Solution

    |

  3. Two circular loops of equal radii are placed coaxially at some separat...

    Text Solution

    |

  4. A small, conducting circular loop is placed inside a long solenoid car...

    Text Solution

    |

  5. A metallic ring is attached with the wall of a room. When the north po...

    Text Solution

    |

  6. In the figure magnetic energy stored in the coil is

    Text Solution

    |

  7. An emf of 15 V is applied in a circuit containing 5 H inductance and 1...

    Text Solution

    |

  8. A circuit element is placed in a closed box. At time t=0, constant cur...

    Text Solution

    |

  9. Some magnetic flux is changed from a coil resistance 10Omega. As a res...

    Text Solution

    |

  10. The adjoining figure shows two bulbs B(1) and B(2) resistor R and an i...

    Text Solution

    |

  11. A coil of 40 Omega resistance has 100 turns and radius 6 mm us connect...

    Text Solution

    |

  12. A coil has an area of 0.05 m^(2) and it has 800 turns. It is placed pe...

    Text Solution

    |

  13. In a magnetic field of 0.05T, area of a coil changes from 101 cm^(2) t...

    Text Solution

    |

  14. the resistance and inductance of series circuit are 5Omega and 20H res...

    Text Solution

    |

  15. The number of turns in the coil of an ac genrator is 5000 and the area...

    Text Solution

    |

  16. A wheel with ten metallic spokes each 0.50 m long is rotated with a sp...

    Text Solution

    |

  17. A charge particle moves along the line AB, which lies in the same ...

    Text Solution

    |

  18. An electric potential difference will be induced between the ends of t...

    Text Solution

    |

  19. A long horizontal metallic rod with length along the east-west directi...

    Text Solution

    |

  20. Pure inductance of 3.0 H is connected as shown below. The equivalent i...

    Text Solution

    |