Home
Class 12
PHYSICS
Eddy current are produce when...

Eddy current are produce when

A

a metal is kept in varying magnetic field

B

a metal is kept in a steady magnetic field

C

a circular coil is placed in a magnetic field

D

through a circular coil current is passed

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    DC PANDEY ENGLISH|Exercise Taking it together|119 Videos

  • ELECTROMAGNETIC INDUCTION

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

  • ELECTROMAGNETIC INDUCTION

    DC PANDEY ENGLISH|Exercise Example|71 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): If changing current is flowing through a machine of iron eddy currents are produced (R): Change in magnetic flux through an area causes eddy currents

Assertion : A metallic surface is moved in and out in magnetic field then emf is induced in it. Reason : Eddy current will be produced in a metallic surface moving in and out of magnetic field.

(A): A bar magnet is dropped into a long vertical copper tube. Even taking air resistance as negligible, the magnet attains a constant terminal velocity. If the tube is heated, the terminal velocity gets increased. (R) : The terminal velocity depends on eddy current produced in bar magnet.

Assertion : Eddy currents heat up the core and dissipate electrical energy in the form of heat. Reason : Eddy currents are always undesirable.

A current of water is produced in Branchiostoma by

When are IgE produced?

A current carrying wire produces in the neighbourhood

If in a moving coil galvanometer, a current I produces a deflection theta , then

Which compound is produced when fluorine reacts with water ?

DC PANDEY ENGLISH-ELECTROMAGNETIC INDUCTION-Check point
  1. The self inductance of a solenoid of length L, area of cross-section A...

    Text Solution

    |

  2. A solenoid has 2000 turns would over a length of 0.30 m. The area of i...

    Text Solution

    |

  3. A 50 mH coil carries a current of 2 ampere. The energy stored in joule...

    Text Solution

    |

  4. In an inductor of inductance L=100mH, a current of I=10A is flowing. T...

    Text Solution

    |

  5. Two pure inductors each of self-inductance L are connected in parallel...

    Text Solution

    |

  6. Two coils X and Y are placed in a circuit such that when the current c...

    Text Solution

    |

  7. Two coils have a mutual inductance 0.005 H. The current changes in the...

    Text Solution

    |

  8. The mutual inductance between a primary and secondary circuit is 0.5H....

    Text Solution

    |

  9. The coefficient of mutual induction between two circuits is equal to t...

    Text Solution

    |

  10. Two circuits have coefficient of mutual induction of 0.09 henry. Avera...

    Text Solution

    |

  11. A varying current at the rate of 3A//s in a coil generates an e.m.f. o...

    Text Solution

    |

  12. A solenoid is placed inside another solenoid, the length of both being...

    Text Solution

    |

  13. Two coils of self-inductance 2mH and 8 mH are placed so close togethe...

    Text Solution

    |

  14. Two coils of self-inductance L(1) and L(2) are placed closed to each o...

    Text Solution

    |

  15. An ideal coil of 10 henry is joined in series with a resistance of 5 o...

    Text Solution

    |

  16. An L-R circuit has a cell of e.m.f. E , which is switched on at time t...

    Text Solution

    |

  17. During current growth in an L-R circuit the time constant is the time ...

    Text Solution

    |

  18. An LR circuit with a battery is connected at t=0. Which of the follow...

    Text Solution

    |

  19. Eddy current are produce when

    Text Solution

    |

  20. Which of the following does not use the application of eddy current?

    Text Solution

    |