Home
Class 12
PHYSICS
The coefficient of self inductance of a ...

The coefficient of self inductance of a coil is

A

`L=e(dI)/(dt)`

B

`L=e(dI)/(dr)`

C

`L=-(dI)/(dr)`

D

`L=-e(dt)/(dI)`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • ELASTICITY

    NIKITA PUBLICATION|Exercise MCQ|314 Videos

  • ELECTRONS AND PHOTONS

    NIKITA PUBLICATION|Exercise MCQs|162 Videos

Similar Questions

Explore conceptually related problems

If the magnetic flux linked with a coil through which a current of x A is set up is y Wb , then the coefficent of self inductance of the coil is

When the current in a coil charges from 2A to 4A in 0.05 s, emf of 8 volt is induced in the coil. The coefficient of self induction of the coil is -

When the current in a coil charges from 2A to 4A in 0.05 s, emf of 8 volt is induced in the coil. The coefficient of self induction of the coil is -

The coefficient of self-inductance of a solenoid is 0.18 mH . If a crude of soft iron of relative permeability 900 is inserted, then the coefficient of self-inductance will become nearly

The unit of self inductance of a coil is

When the current changes from +2A to -2A in 0.05 second, an e.m.f. of 8V is induced in a coil. The coefficient of self-induction of the coil is

When the current changes from +2A to -2A in 0.05s , and emf of 8B is induced in a coil. The coefficient of self-induction of the coil is

Assertion : When number of turns in a coil is doubled, coefficient of self-inductance of the coil becomes 4 times. Reason : This is because L prop N^(2)

The coefficients of self induction of two coils are L_(1) and L_(2) .To induce an of 2 volt in the coil, a change of current of 1A has to be produced in 5 second and 50ms respectively. The ratio of their self inductances L_(1):L_(2) will be

[" A small circular coil of radius " "r" and having "n' turns carries a current "7" .The coefficient of self-induction of the coil is "],[[" (A) "mu_(0)pi nr/2],[" (B) ",mu_(0)pi nr],[" (C) ",mu_(o)pi n^(2)r/2],[" (D) ",mu_(o)pi nr^(2)/2]]

NIKITA PUBLICATION-ELECTROMAGNETIC INDUCTION-MCQs
  1. Production of induced emf in a coil due to the changes of current in t...

    Text Solution

    |

  2. When a rate of change of current in a circuit is unity, the induced em...

    Text Solution

    |

  3. The coefficient of self inductance of a coil is

    Text Solution

    |

  4. The inductance of a coil depends on

    Text Solution

    |

  5. In SI, Henry is the unit of

    Text Solution

    |

  6. If an emf of 1 volt is induced in the coil due to the change of curren...

    Text Solution

    |

  7. The self inductance of a coil does not depend upon

    Text Solution

    |

  8. The self inductance of a coil does not depend upon

    Text Solution

    |

  9. The coils in resistance boxes are made from doubled insulated wire to ...

    Text Solution

    |

  10. If the number of turns per units length of a coils of solenoid is doub...

    Text Solution

    |

  11. A coil of insulated wire is connected to a battery. If it is connected...

    Text Solution

    |

  12. If the rate of change of current of 1A/s in one coil, induced an emf o...

    Text Solution

    |

  13. If the rate of change of current in primary coil is doubled, the induc...

    Text Solution

    |

  14. Mutual induction is the produced of induced emf in a coil due to the c...

    Text Solution

    |

  15. The mutual inductance depends upon

    Text Solution

    |

  16. The self inductance of a coil is a measure of

    Text Solution

    |

  17. If 'N' is the number of turns in a coil, the value of self inductance ...

    Text Solution

    |

  18. An inductor may store energy in

    Text Solution

    |

  19. One henry is equal to

    Text Solution

    |

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

    Text Solution

    |