Home
Class 12
PHYSICS
The ring B is coaxial with a solenoid A ...

The ring `B` is coaxial with a solenoid `A` as shown in figure. As the switch `S` is closed at `t=0`, the ring `B`

A

is attracted towards AS

B

is repelled by A

C

is initially repelled and then attracted

D

is initially attracted and then repelled

Text Solution

Verified by Experts

The correct Answer is:
B
Current increases with time, so, flux passing through `B` will increase with time. From Lenz's law, it should have a tendency to move away from the coil to decrease flux.
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    DC PANDEY ENGLISH|Exercise Objective Questions|3 Videos

  • ELECTROMAGNETIC INDUCTION

    DC PANDEY ENGLISH|Exercise Level 1 Subjective|21 Videos

  • ELECTROMAGNETIC INDUCTION

    DC PANDEY ENGLISH|Exercise Level 1 Assertion And Reason|10 Videos

  • CURRENT ELECTRICITY

    DC PANDEY ENGLISH|Exercise Medical entrances gallery|97 Videos

  • ELECTROMAGNETIC WAVES

    DC PANDEY ENGLISH|Exercise Sec C|22 Videos

Similar Questions

Explore conceptually related problems

In given LR circuit the switch S is closed at time t=0 then

In the circuit as shown in the figure, switch S is added at t=0. Then:

In the circuit shown in figure the switch S is closed at t = 0. A long time after closing the switch

In the LR circuit as shown in figure, te switch is closed at t=0, mark the incorrect statement of the following

In the circuit shown in fig, if the switch S is closed at t = 0 , the capacitor charges with a time constant

Three identical bulb are connected as shown in figure . When switch S is closed, the power consumed in bulb B is P . What will be the power consumed by the same bulb when switch S is opened ?

Two capacitors A and B are connected in series with a battery as shown in the figure. When the switch S is closed and the two capacitors get charged fully, then

Two capacitors A and B are connected in series with a battery as shown in the figure. When the switch S is closed and the two capacitors get charged fully, then

Two capacitors A and B are connected in series with a battery as shown in the figure. When the switch S is closed and the two capacitors get charged fully, then

A circuit consists of three identical lamps connected to a battery as shown in the figure. When the switch S is closed then the intensities of lamps A and B

DC PANDEY ENGLISH-ELECTROMAGNETIC INDUCTION-Level 1 Objective
  1. The armature of a DC motor has 20Omega resistance. It draws a current ...

    Text Solution

    |

  2. In a transformer the output current and voltage are respectively 4 A a...

    Text Solution

    |

  3. When a loop moves towards a stationary magnet with speed v, the induce...

    Text Solution

    |

  4. A short magnet is allowed to fall from rest along the axis of a horizo...

    Text Solution

    |

  5. In figure, if the current i decreases at a rate alpha then VA-VB is

    Text Solution

    |

  6. A coil has an inductance of 50 m H and a resistance of 0.3Omega. If a ...

    Text Solution

    |

  7. A constant voltage is applied to a series R-L circuit by closing the s...

    Text Solution

    |

  8. A coil of area 10cm^2 and 10 turns is in magnetic field directed perpe...

    Text Solution

    |

  9. In figure final value of current in 10Omega resistor, when plug of key...

    Text Solution

    |

  10. A circuit consists of a circular loop of radius R kept in the plane of...

    Text Solution

    |

  11. A flat circular coil of n turns, area A and resitance R is placed in a...

    Text Solution

    |

  12. A small circular loop is suspended from an insulating thread. Another ...

    Text Solution

    |

  13. In the circuit shown in figure L=10H, R=5Omega, E=15V. The switch S is...

    Text Solution

    |

  14. In the figure shown a T-shaped conductor moves with constant angular v...

    Text Solution

    |

  15. A conducting rod of length l falls verticaly under gravity in a region...

    Text Solution

    |

  16. A semi circular conducting ring acb of radius R moves with constant sp...

    Text Solution

    |

  17. The ring B is coaxial with a solenoid A as shown in figure. As the swi...

    Text Solution

    |

  18. If the instantaneous magnetic flux and induced emf produced in a coil ...

    Text Solution

    |

  19. The figure shows a conducting ring of radius R. A uniform steady magne...

    Text Solution

    |

  20. A metallic rod of length l is hinged at the point M and is rotating ab...

    Text Solution

    |