Home
Class 12
PHYSICS
A solenoid of length l metre has self-in...

A solenoid of length `l` metre has self-inductance `L` henry. If number of turns are doubled, its self-inductance

A

Remains same

B

Becomes 2L henry

C

Becomes 4 L henry

D

Becomes `(L)/(sqrt(2))` henry

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • ELECTRO MAGNETIC INDUCTION

    ERRORLESS |Exercise OT|3 Videos

  • ELECTRO MAGNETIC INDUCTION

    ERRORLESS |Exercise Motional EMI|1 Videos

  • CURRENT ELECTRICITY

    ERRORLESS |Exercise Self Evaluation Test -19|23 Videos

  • ELECTRON, PHOTON, PHOTOELECTRIC EFFECT AND X-RAYS

    ERRORLESS |Exercise Self Evaluation Test|3 Videos

Similar Questions

Explore conceptually related problems

If number of turns in a coil is quadrupled, then self-inductance will be:

If the length and area of cross-section of an inductor remain same but the number of turns is doubled, its self-inductance will become-

How does self inductance of a coil depend on number of turns in the coil?

A wire of fixed length is wound on a solenoid of length l and redius r . Its self-inductance is found to be L . Now, if the same wire is wound on a solenoid of length l//2 and redius r//2 then the self-inductance will be

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

A wire of fixed length is wound on a solenoid of length l and radius r, its self inductance is found to be L. If same wire is wound on a solenoid of length l/3 and radius r/3 , then self inductance will be

ERRORLESS -ELECTRO MAGNETIC INDUCTION-SET
  1. A solenoid of length l metre has self-inductance L henry. If number of...

    Text Solution

    |

  2. The figure shows four wire loops, with edge length of either L or 2L. ...

    Text Solution

    |

  3. A circular coil and a bar magnet placed nearby are made to move in the...

    Text Solution

    |

  4. A square coil ABCD lying in x-y plane with its centre at origin. A lon...

    Text Solution

    |

  5. A short magnet is allowed to fall from rest along the axis of a horizo...

    Text Solution

    |

  6. The horizontal component of the earth's magnetic field at a place is 3...

    Text Solution

    |

  7. A copper disc of radius 0.1 m rotates about its centre with 10 revolut...

    Text Solution

    |

  8. A coil of Cu wire (radius r, self-inductance L) is bent in two concen...

    Text Solution

    |

  9. In which of the following circuits is the current maximum just after t...

    Text Solution

    |

  10. A small coil is introduced between the poles of an electromagnet so th...

    Text Solution

    |

  11. Two circular coils A and B are facing each other as shown in figure. T...

    Text Solution

    |

  12. A conductuing loop having a capacitor is moving outward from the magne...

    Text Solution

    |

  13. A straight wire of length L is bent into a semicircle. It is moved in ...

    Text Solution

    |

  14. If in a coil rate of change of area is (5meter^(2))/(milli second)and ...

    Text Solution

    |

  15. In series with 20 ohm resitor a 5 henry inductor is placed. To the com...

    Text Solution

    |

  16. Two circular coils P & Q are coaxially & carry currents I1 and I2 resp...

    Text Solution

    |

  17. The phase difference between the flux linkage and the induced e.m.f. i...

    Text Solution

    |

  18. A pair of parallel conducting rails lie at right angle to a uniform ma...

    Text Solution

    |

  19. The magnetic field in the cylindrical region shown in figure increase ...

    Text Solution

    |

  20. An aircraft with a wingspan of 40 m flies a speed of 1080 km hr(1) in ...

    Text Solution

    |

  21. A hundred turns of insulated copper wire are wrapped around an iron cy...

    Text Solution

    |