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|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

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

Considering magnetic field along the axis of a circular loop of radius R , at what distance from the centre of the loop is the field one eighth of its value at the centre ?

A long straight wire is parallel to one edge of a rectangular loop as shown in figure-5.310. if the current in the long wire varies with time as I=I_(0)e^(-tr) , what will be the induced emf in the loop at t= tau ?

An infinitely long straight conductor is bent into the shape as shown in figure. It carries the current I and radius of the circular loop is a, then the magnetic field at the centre of 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.

DC PANDEY-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 airplane in which the distance between the tips of wings is 50 m is...

    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-inductances L(1) = 8 mH and L(2) = 2 mH....

    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

    |