Home
Class 12
PHYSICS
The self inductance of a long solenoid c...

The self inductance of a long solenoid cannot be increased by

A

increasing its area of cross-section

B

increasing its length

C

changing the medium with greater permeability

D

increasing the current through it

Text Solution

Verified by Experts

The correct Answer is:
D
The self-inductance of a long solenoid is given by
`L=(mu_(r)mu_(0)n^(2)A)/(l)`
It is clear that the self-inductance of a long solenoid does not depend upon the current flowing through it.
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    DC PANDEY|Exercise Taking it together|119 Videos

  • ELECTROMAGNETIC INDUCTION

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

  • ELECTROMAGNETIC INDUCTION

    DC PANDEY|Exercise Level 2 Subjective|20 Videos

  • CURRENT ELECTRICITY

    DC PANDEY|Exercise Medical entrances gallery|97 Videos

  • ELECTROMAGNETIC WAVES

    DC PANDEY|Exercise Sec C|22 Videos

Similar Questions

Explore conceptually related problems

Self inductance of a soleniod can be increased by

Self-inductance of a solenoid depend on-

Self induction of a solenoid is

What will be the effect on the self-inductance of a long solenoid, if the number of turns of a solenoid is made 3 times?

Assertion : The self-inductionce of a long solenoid is proportional to the area of corss-section and length of the solenoid. Reason : Self inductance of a solenoid is independent of the number of truns per unit length.

The self inductance L of a solenoid of length l and area of cross-section A, with a fixed number of turns N increases as

Obtain an expression for the self inductance of a straight solenoid of length l and radius r (l > > r).

How does self inductance of a solenoid change when number of turns is double keeping othe parameters same ?

DC PANDEY-ELECTROMAGNETIC INDUCTION-Check point
  1. The current passing through a choke coil of 5 hery is decreasing at th...

    Text Solution

    |

  2. In a coil of self-inuctance 0.5 henry, the current varies at a constan...

    Text Solution

    |

  3. The self inductance of a long solenoid cannot be increased by

    Text Solution

    |

  4. Self-inductance of a coil is 50mH. A current of 1 A passing through th...

    Text Solution

    |

  5. The self inductance of a coil is L . Keeping the length and area same,...

    Text Solution

    |

  6. In circular coil, when no. of turns is doubled and resistance becomes ...

    Text Solution

    |

  7. The self inductance of a solenoid of length L, area of cross-section A...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |