Home
Class 12
PHYSICS
A small loop of area of cross -section 1...

A small loop of area of cross -section `10^(-4)m^(2)` is lying concentrically and coplanar inside a bigger loop of radius `0.628m`. A current of `10A` is passed in the bigger loop. The smaller loop is rotated about its diameter with an angular velocity `omega`. The magnetic flux linked with the smaller loop will be

A

`10^(-7)sin omega t`

B

`10^(-7)cos omega t`

C

`10^(-9)sin omega t`

D

`10^(-9)cos omega t`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    TARGET PUBLICATION|Exercise COMPETITIVE THINKING|158 Videos
  • ELECTROMAGNETIC INDUCTION

    TARGET PUBLICATION|Exercise EVALUATION TEST|8 Videos
  • ELECTROMAGNETIC INDUCTION

    TARGET PUBLICATION|Exercise EVALUATION TEST|8 Videos
  • ELASTICITY

    TARGET PUBLICATION|Exercise Evaluation test|14 Videos
  • ELECTROSTATICS

    TARGET PUBLICATION|Exercise EVALUATION TEST|14 Videos

Similar Questions

Explore conceptually related problems

A circular loop is kept perpendicular to a uniform magnetic field. Loop is rotated about its diameter with constant angular velocity.

A very small circular loop of area 5xxI0^(-4)m^(2) , resistance 2Omega and negligible inductance is initially coplanar and concentric with a much larger fixed circular loop of radius 0.Im . A constant current of IA is passed in the bigger loop and the smaller loop is rotated with angular velocity omegarad//sec about a diameter. Calculate (a) the flux limked with the smaller loop, (b) indced emf (c) induced current in the smaller loop, as a function of time.

A very small circular loop of radius a is initially (at t = 0) coplanar and concentric with a much larger fixed circular loop of radius b. A constant current I flows in the larger loop. The smaller loop is rotated with a constant angular speed omega about the common diameter. The emf induced in the smaller loop as a function of time t is

The linear loop has an area of 5 xx 10^(-4)m^(2) and a resistance oof 2 Omega . The larger circular loop is fixed and has a radius of 0.1m . Both the loops are concentric and coplanner. The smaller loop is rotated with an angular velocity omegarads^(-1) about its dismeter. The magnetic flux with the smaller loop is

A very small circular loop of radius r is initially coplanar and concentric with a much larger circular loop of radius R(gt gtr) . A constant current i is passed in the larger loop which is kept fixed in space and the small loop is rotated with angular velocity omega about a diameter. The resistance of the small loop is R_(0) and the inductance is negligible. (a) Find the current in the small loop as a function of time. (b) Calculate how much troque must be exerted on the small loop to rotate it.

A very small circular loop of radius a is initially coplanar & concentric with a much larger circular loop of radius b (gtgta) . A constant current is passed in the large loop which is kept fixed in space & the small loop is rotated with angular velocity omega about a diameter. The resistance of the small loop is R & its self inductance is negligible. The current in the larger loop is clockwise. Calculate how much torque must be exerted on the small loop to rotate it.

A very small circular loop of radius a is initially coplanar & concentric with a much larger circular loop of radius b (gtgta) . A constant current is passed in the large loop which is kept fixed in space & the small loop is rotated with angular velocity omega about a diameter. The resistance of the small loop is R & its self inductance is negligible. The current in the larger loop is clockwise. Find the current in the small loop as a function of time.

A very small circular loop of radius a is initially coplanar & concentric with a much larger circular loop of radius b (gtgta) . A constant current is passed in the large loop which is kept fixed in space & the small loop is rotated with angular velocity omega about a diameter. The resistance of the small loop is R & its self inductance is negligible. The current in the larger loop is clockwise. At the moment both the loops are in the same plane

TARGET PUBLICATION-ELECTROMAGNETIC INDUCTION-CRITICAL THINKING
  1. A long solenoid has 1000 turns and its area of cross -section is 10^(-...

    Text Solution

    |

  2. The current induced in 100Omega coil when the magnetic flux decreases ...

    Text Solution

    |

  3. A small loop of area of cross -section 10^(-4)m^(2) is lying concentri...

    Text Solution

    |

  4. The instantaneous magnetic flux phi in a circuit is phi=4t^(2)-4t+1 ....

    Text Solution

    |

  5. A given wire is bent into a circular loop of radius 7cm and is placed ...

    Text Solution

    |

  6. Conducting square loop of side L and resistance R moves in its plane ...

    Text Solution

    |

  7. A metal wire of area of cross-section 1.8xx10^(-7)m^(2) and specific r...

    Text Solution

    |

  8. A coil of radius 1cm and 100 turns is placed in a magnetic field of 10...

    Text Solution

    |

  9. The magnetic flux in a closed circuit of resistance 10Omega varies wit...

    Text Solution

    |

  10. A coil of 50 turns is pulled in 0.02s between the poles of a magnet, w...

    Text Solution

    |

  11. A magnetic field of 2xx10^(-2)T acts at right angles to a coil of area...

    Text Solution

    |

  12. A coil of 10 turns and area 4xx10^(-2)m^(2) is placed in a unifrom ma...

    Text Solution

    |

  13. A rectangular coil of 100 turns and size 0.1mxx0.05m is placed perpend...

    Text Solution

    |

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

    Text Solution

    |

  15. An idduced emf is produced when a magnet is plunged into a coil. The m...

    Text Solution

    |

  16. A cylindrical bar amgnet is kept along the axis of a circular coil. If...

    Text Solution

    |

  17. A square loop of side 22cm is converted into circular loop in 0.4s. A...

    Text Solution

    |

  18. A coil is wound as a transformer of rectangular cross section. If all ...

    Text Solution

    |

  19. When the current changes from +2A to -2A in 0.5 second an emf of 8V is...

    Text Solution

    |

  20. The coefficients of self induction of two coils are L(1) and L(2) .To ...

    Text Solution

    |