Home
Class 12
PHYSICS
A infinitely long conductor AB lies alon...

A infinitely long conductor AB lies along the axis of a circular loop of radius R. If the current in the conductor AB varies at the rate of x ampere/second, then the induced emf in the loop is

A

`(mu_(0)xR)/(2)`

B

`(mu_(0)xR)/(4)`

C

`(mu_(0)pixR)/(2)`

D

Zero

Text Solution

Verified by Experts

The correct Answer is:
D
Magnetic lines on circular loop, due to current in wire AB are tangential to its plane.
`therefore"Magnetic flux, "phi_(B)="0 or induced emf,"(dphi_(B))/(dt)=0`
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

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

  • ELECTROMAGNETIC INDUCTION

    DC PANDEY ENGLISH|Exercise Match the columns|5 Videos

  • ELECTROMAGNETIC INDUCTION

    DC PANDEY ENGLISH|Exercise Check point|60 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

A long conductor AB lies along the axis of a circular loop of radius R. If the current in the conductor AB varies at the rate of 1 amphere/ second, then the induced emf in the loop is

An infinite current-carrying conductor is placed along the z-axis and a wire loop is kept in the x-y plane. The current in the conductor is increasing with time. Then the

A semi-circular loop of radius R is placed in a uniform magnetic field as shown. It is pulled with a constant velocity. The induced emf in the loop is

A long straight current carrying wire passes normally through the centre of circular loop. If the current through the wire increases, will there be an induced emf in the loop ? Justify.

A current- carrying straight wire is kept along the axis of a circular loop carrying a current. The straight wire

An infinitely long conductor is bent into a circle as shown in figure. It carries a current I ampere and the radius of loop is R metre. The magnetic induction at the centre of loop is

A small, conducting circular loop is placed inside a long solenoid carrying a current. The plane of the loop contains the axis of the solenoid. If the current in the solenoid is varied, the current induced in the loop is

A small, conducting circular loop is placed inside a long solenoid carrying a current. The plane of the loop contains the axis of the solenoid. If the current in the solenoid is varied, the current induced in the loop is

A current I flows along a round circular loop of radius R . Find the line integration of magnetic field along the axis of the loop from center to oo

The radius of a circular loop is r and a current i is flowing in it. The equivalent magnetic moment will be

DC PANDEY ENGLISH-ELECTROMAGNETIC INDUCTION-Taking it together
  1. In the circuit shown in the figure, the jockey J is being pulled towar...

    Text Solution

    |

  2. The value of time constant for the given circuit is

    Text Solution

    |

  3. A infinitely long conductor AB lies along the axis of a circular loop ...

    Text Solution

    |

  4. A physicist works in a laboratory where the magnetic field is 2T. She ...

    Text Solution

    |

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

    Text Solution

    |

  6. An aeroplane in which the distance between the tips of wings is 50 m i...

    Text Solution

    |

  7. A conducting square loop of side l and resistance R moves in its plane...

    Text Solution

    |

  8. Two rails of a railway track, insulated from each other and the ground...

    Text Solution

    |

  9. A Pair of coils of turns n(1) and n(2) are kept close together. Curren...

    Text Solution

    |

  10. A loop made of straight edegs has six corners at A(0,0,0), B(L, O,0) C...

    Text Solution

    |

  11. One conducting U tube can slide inside another as shown in figure, mai...

    Text Solution

    |

  12. In a closed loop, which has some inductance but negligible resistance,...

    Text Solution

    |

  13. A magnetic field given by B(t) =0.2t-0.05t^(2) tesla is directed perpe...

    Text Solution

    |

  14. A small magnet M is allowed to fall through a fixed horizontal conduct...

    Text Solution

    |

  15. A rectangular loop with a sliding connector of length 10 cm is situate...

    Text Solution

    |

  16. When the current in the portion of the circuit shown in the figure is...

    Text Solution

    |

  17. Two different coils have self-inductance L(1)=8mH,L(2)=2mH. The curren...

    Text Solution

    |

  18. The current i in an induction coil varies with time t according to the...

    Text Solution

    |

  19. A coil of inductance L=50muH and resistance = 0.5Omega is connected to...

    Text Solution

    |

  20. In the circuit shows in Fig, the coil has inductance and resistance. W...

    Text Solution

    |