Home
Class 12
PHYSICS
A rectangular coil of 100 turns and size...

A rectangular coil of 100 turns and size `0.1mxx0.05m` is placed perpendicular to a magnetic field of 0.1 T. If the field drops to 0.05 T in 0.05 s, the magnitude of the emf induced in the coil is

A

`0.005V`

B

`0.05V`

C

`0.5V`

D

`5V`

Text Solution

Verified by Experts

The correct Answer is:
C
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 50 turn coil with an average diameter of 0.04 m is placed perpendicular to a magnetic field of 5000 T. If the magnetic field is changed to 2000 T in 5 s, find the magnitude of the induced emf.

A closely wound rectangular coil of 200 turns and size 0.30 xx 0.05 m is placed perpedicular to a megnetic field of induction 0.20 Wb m^(-2) Calculate the induced e.m.f. in the coil, when megnetic induction drop to 0.5 Wb m^(-2) in 0.02 s.

A 70 turn coil with average diameter of 0.02 m is placed perpendicular to magnetic field of 9000 T. If the magnetic field is changed to 6000 T is 3s, what is the magnitude of induced emf ?

A rectangular coil of 200 turns and area 100 cm^(2) is kept perpendicular to a uniform magnetic field of induction 0.25 tesla. If the field is reversed in direction in 0.01 second, the average induced emf in the coil is

A rectangular coil of 50 turns, each of area 0.1 m^(2) and carrying a current of 1 A is held perpendicular to a magnetic field of 0.1 T. What is the torque acting on the coil?

A coil of 10 turns and area 4xx10^(-2)m^(2) is placed in a unifrom magnetic field of flux dencity 10^(-2)T .If it is removed completely in 0.5s ,then the induced in the coil is

A coil of area 0.05 m^(2) and 500 turns is placed in a magnetic field of strength 4 xx 10^(-5) tesla. If it is rotated through 90^(@) in 0.1 sec, then the magnitude of e.m.f. Induced in the coil will be

A coil with an average diameter of 0.02 m is placed perpendicular to a magnetic field of 6000 T. If the induced e.m.f. is 11 V when magnetic field is changed to 1000 T in 4 s, what is the number of turns in the coil ?

A coil of area 10 cm^2 has 200 turns. Magnetic field of 0.1 Wb//m^2 is perpendicular to the plane of the coil. The field is reduced to zero in 0.1 s, the induced emf in the coil is

A circular coil of radius 2cm and 200 numbers of turns is placed perpendicular to uniform magnetic field of 2 T. The coil is turned through angle 180^@ in time interval of 0.5 s. What will be the average emf induced in the coil ?

TARGET PUBLICATION-ELECTROMAGNETIC INDUCTION-CRITICAL THINKING
  1. A magnetic field of 2xx10^(-2)T acts at right angles to a coil of area...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  11. When the number of turns in a coil is doubled without any change in th...

    Text Solution

    |

  12. A coil of wire of a certain radius has 600 turns and a self-inductance...

    Text Solution

    |

  13. The coefficients of self -induction of two coils are L(1)=8mH and L(2)...

    Text Solution

    |

  14. The coefficient of self-inductance of a solenoid is 0.18 mH. If a crud...

    Text Solution

    |

  15. A coil of self-inductance ((1)/(pi)) H is connected is series with a 3...

    Text Solution

    |

  16. The coefficient of mutual induction between two coils is 4H. If the cu...

    Text Solution

    |

  17. In a step up transformer, the input voltage is 300 V and the output vo...

    Text Solution

    |

  18. A transformer has 100 turns in the primary and 500 turns in the second...

    Text Solution

    |

  19. In a transformer 220 ac voltage is increased to 2200 volts. If the nu...

    Text Solution

    |

  20. The primary winding of a transformer has 100 turns and its secondary w...

    Text Solution

    |