Home
Class 12
PHYSICS
A coil of 100 turns is pulled in 0.04 s...

A coil of 100 turns is pulled in 0.04 s from between the poles of a magnet , where its area includes flux of `40 xx 10 ^(-6)` weber per turn to a place where it includes of flux of `10^(-5)` weber per turn. Calculate the average emf induced in the coil .

Promotional Banner

Topper's Solved these Questions

  • ELECTRICAL INSTRUMENTS

    SL ARORA|Exercise Problem for self practice|81 Videos

  • ELECTROMAGNETIC WAVES

    SL ARORA|Exercise Problem for self-practice|21 Videos

Similar Questions

Explore conceptually related problems

A coil of 50 turns is pulled in 0.02s between the poles of a magnet, where its area includes 31xx10^(-6)Wb to 1xx10^(-6)Wb .The average is

A coil of 100 loops is pulled in 0.01 s between the pole of a magnet, where is area intercepts the flux of 300 mu Wb, to a place where it intercepts the flux of 100 mu Wb. Caluculate the e.m.f. induced in the coil.

A coil of 100 turns is pulled from the magnetic field where its area includes 21 xx 10^(-4) Wb to a place where its area includes 1 xx 10^(-4) Wb. If the time for pulling is 0.05 s, find the emf induced in the coil.

A coil intercepts a magnetic flux of 0.2 xx 10^(-2) Wb in 0.1 s. What is the emf induced in the coil ?

If a current of 4A produces a magnetic flux of 10^(-3) Wb per turn in a coil of 1000 turns, then the self inductance of the coil is

A magnetic flux of 8X10^(-4) weber is linked with each turn of a 200 - turn coil when thereis an electric current of 4 A in it. Calculate the self inductance of the coil.

A magnetic flux of 500 micro-webers passing through a 200 turns coil is reversed in 20 xx 10^(-3) seconds. The average emf induced in the coil in volts, is

A coil of 100 turns carries a current of 5mA and creates a magnetic flux of 10^(-5) weber. The inductance is

A magnetic flux of 9 xx 10^(-4) weber is linked with each turn of a 200 turn coil when there is an electric current of 3 A in it. The self inductance of the coil is

The magnetic flux associated with a coil changes from zero to 5xx10^(-5)Wb in 25s. The emf induced in the coil is

SL ARORA-ELECTROMAGNETIC INDUCTION-All Questions
  1. A rectangular loop of area 20 cm xx 30 cm is held in a magnetic field ...

    Text Solution

    |

  2. A coil of 100 turns is pulled in 0.04 s from between the poles of a m...

    Text Solution

    |

  3. The mangnetic flux passsing perpendicular to the plane of a coil and d...

    Text Solution

    |

  4. A coil of area 500cm^(2) and having 1000 turns is held perpendicular t...

    Text Solution

    |

  5. A coil with an average diameter of 0.02 m is placed perpendicular to a...

    Text Solution

    |

  6. A wire 88 cm long bent into a circular loop is placed perpendicular to...

    Text Solution

    |

  7. A magnetic field of flux density 10 T acts normal to a cail of 50 turn...

    Text Solution

    |

  8. 5.5 xx 10^(–4) Magnetic flux lines are passing through a coil of resis...

    Text Solution

    |

  9. A coil of area A lies in a uniform magnetic field B with its plane per...

    Text Solution

    |

  10. A long solenoid of 10 turns / cm has a small loop of area 1 sq. cm pl...

    Text Solution

    |

  11. An air cored solenoid with length 30 cm, area of cross-section 25 cm^(...

    Text Solution

    |

  12. A copper rod of length L rotates with an angular with an angular speed...

    Text Solution

    |

  13. A metal disc of radius R rotates with an angular velcoity omega about ...

    Text Solution

    |

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

    Text Solution

    |

  15. When a wheel with metal spokes 1.2 m long rotates in a magnetic field ...

    Text Solution

    |

  16. A metallic rod of 1 m length is rotated with a frequency of 50 rev//s,...

    Text Solution

    |

  17. A circular copper disc of 10 cm radius rotates at 20 pi radian//sec ab...

    Text Solution

    |

  18. Prove that the charge induced does not depend on the rate of change of...

    Text Solution

    |

  19. It is desired to measure the magnitude of field between the poles of a...

    Text Solution

    |

  20. A 10 ohm resistance coil has 1000 turns and at a time, magnetic flux 5...

    Text Solution

    |