Home
Class 12
PHYSICS
When the number of turns in a coil is do...

When the number of turns in a coil is doubled without any change in the length of the coil, its self-inductance becomes

A

becomes `4` times

B

becomes `2` times

C

geta halved

D

remains unchanged

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    TARGET PUBLICATION|Exercise COMPETITIVE THINKING|158 Videos

  • ELECTROMAGNETIC INDUCTION

    TARGET PUBLICATION|Exercise EVALUATION TEST|8 Videos

  • ELECTROMAGNETIC INDUCTION

    TARGET PUBLICATION|Exercise EVALUATION TEST|8 Videos

  • ELASTICITY

    TARGET PUBLICATION|Exercise Evaluation test|14 Videos

  • ELECTROSTATICS

    TARGET PUBLICATION|Exercise EVALUATION TEST|14 Videos

Similar Questions

Explore conceptually related problems

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

When the number of turns in the two circular coils closely wound are doubled (in both) their mutual inductance becomes

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)

When the number of turns in a toroidal coil is doubled, then the value of magnetic flux density will becomes-

A coil is wound on a frame of rectangular cross - section. If all the linear dimensions of the frame are increased by a factor x and the number of turns per unit length of the coil remains the same, self - inductance of the coil increases by a factor of

If both the number of turns and core length of an inductor is doubled keeping other factorsconstant, then its self-inductance will be

TARGET PUBLICATION-ELECTROMAGNETIC INDUCTION-CRITICAL THINKING
  1. When the current changes from +2A to -2A in 0.5 second an emf of 8V is...

    Text Solution

    |

  2. The coefficients of self induction of two coils are L(1) and L(2) .To ...

    Text Solution

    |

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

    Text Solution

    |

  4. A coil of wire of a certain radius has 600 turns and a self-inductance...

    Text Solution

    |

  5. The coefficients of self -induction of two coils are L(1)=8mH and L(2)...

    Text Solution

    |

  6. The coefficient of self-inductance of a solenoid is 0.18 mH. If a crud...

    Text Solution

    |

  7. A coil of self-inductance ((1)/(pi)) H is connected is series with a 3...

    Text Solution

    |

  8. The coefficient of mutual induction between two coils is 4H. If the cu...

    Text Solution

    |

  9. In a step up transformer, the input voltage is 300 V and the output vo...

    Text Solution

    |

  10. A transformer has 100 turns in the primary and 500 turns in the second...

    Text Solution

    |

  11. In a transformer 220 ac voltage is increased to 2200 volts. If the nu...

    Text Solution

    |

  12. The primary winding of a transformer has 100 turns and its secondary w...

    Text Solution

    |

  13. A loss free transformer has 500 turns on its primary winding and 2500 ...

    Text Solution

    |

  14. A step-down transformer is connected to 2400 volts line and 80 amperes...

    Text Solution

    |

  15. A 100% efficient transformer has 100 turns in the primary and 25 turns...

    Text Solution

    |

  16. The ratio of secondary to the primary turns in a transformer is 3:2. I...

    Text Solution

    |

  17. The number of turns in the primary coil of a transformer is 1000A. A p...

    Text Solution

    |

  18. In an A.C. generator, when the plane of the armature is perpendicular ...

    Text Solution

    |

  19. A coil of effective area 2m^(2) is rotated so as to cut a magnetic fie...

    Text Solution

    |

  20. A coil of copper having 1000 turns is placed in a magnetic field B=4xx...

    Text Solution

    |