Home
Class 12
PHYSICS
A 10 henry inductor carries a current 2A...

A 10 henry inductor carries a current 2A. How can a 100 volt self induced emf be made to appear in the inductor?

Promotional Banner

Topper's Solved these Questions

  • ELECTRIC CHARGES AND FIELDS

    R G PUBLICATION|Exercise EXERCISE|95 Videos
  • ELECTROMAGNETIC WAVES

    R G PUBLICATION|Exercise EXERCISE|95 Videos

Similar Questions

Explore conceptually related problems

If the rate of change of current 2A second induces an emf of 40 mV in the solenoid, what is the self-inductance of this solenoid?

An AC source of emf E=200sin(100 pit) is connected across an inductor having resistance 100Omega and self inductance 2H. Calculate- Total impedance of the circuit.

A potentiometer wire is of length 10 m and has a total resistance of 18 ohm. It carries a current of 120 mA. What length of it will be necessary to balance a cell of emf 1.5 volt ?

A circular coil of 50 turns and diameter 8 cm carries a current 2 ampere. How much work will be done in rotating a coil through 180^@ when suspended in a uniform magnetic field 1 wb//m^2 .

A coil has an inductance of .2 henry. Calculate the value of induced emf when the current in the coil is changing at the rate of 150 ampere per sec.

R G PUBLICATION-ELECTROMAGNETIC INDUCTION-EXERCISE
  1. Discuss briefly various method of producing induced emf.

    Text Solution

    |

  2. Explain the phenomenon of self induction. Define co-efficient of self ...

    Text Solution

    |

  3. A 10 henry inductor carries a current 2A. How can a 100 volt self indu...

    Text Solution

    |

  4. The magnetic flux through a coil of 50 turns changes from 0.3wb per tu...

    Text Solution

    |

  5. Why are coils in resistance box double wounded?

    Text Solution

    |

  6. State Lenz's law.

    Text Solution

    |

  7. A wheel with 25 metallic spokes each 0.4m long is rotated with a speed...

    Text Solution

    |

  8. Write the different use of eddy current.

    Text Solution

    |

  9. Write in brief the basic principles behind the modern ac generator mac...

    Text Solution

    |

  10. Draw the various stages of generating an alternating current by a loop...

    Text Solution

    |

  11. Show that the magnetic flux through a surface of area A placed in a un...

    Text Solution

    |

  12. Deduce an expression for the self inductance of a long solenoid, the c...

    Text Solution

    |

  13. Current in a circuit falls from 4.8A to 0.2A in 0.1s. If an average em...

    Text Solution

    |

  14. A pair of adjacent coils has a mutual inductance of 1.2H. If the curre...

    Text Solution

    |

  15. What is mutual induction? What are the factors upon which it depends?

    Text Solution

    |

  16. State len's Law of electromagnetic induction. Establish that lenz's La...

    Text Solution

    |

  17. A current of 10A is reduced to zero at a uniform rate in 10^(-3)s. If ...

    Text Solution

    |

  18. What is mutual induction? What are the factors upon which it depends?

    Text Solution

    |

  19. The magnetic flux through a coil perpendicular to its plane and direct...

    Text Solution

    |

  20. Calculate the self inductance of the coil of 1000 turns in which curre...

    Text Solution

    |