Home
Class 11
PHYSICS
The self-inductances of two identical co...

The self-inductances of two identical coils are 0.1H. They are wound over each other. Mutual inductance will be-

A

0.1H

B

0.2H

C

0.01H

D

0.05H

Text Solution

Verified by Experts

The correct Answer is:
A
`:. M=sqrt(L_(1)L_(2))`
Promotional Banner

Topper's Solved these Questions

  • ELASTICITY AND VISCOCITY

    RESONANCE|Exercise Advanced Level Problems|9 Videos

  • ELECTROSTATICS

    RESONANCE|Exercise Exercise|52 Videos

Similar Questions

Explore conceptually related problems

The self inductance of a coil is a measure of

The unit of self inductance of a coil is

Self inductance of a coil is independent of

The coefficient of self inductance of a coil is

The sum and difference of self-inductances of two coils are 13 mH and 5 mH respectively. What is the maximum value of mutual inductance (in milli henry) of the two coil ?

Two pure inductors each of self-inductance L are connected in parallel but are well separted from each other. The total inductance is

In Fig. coil 1 and coil 2 are wound on a long cylindrical insulator. The ends A' and B are joined together and current I is passed. Self-inductance of the two coils are L_(1) and L_(2) , and their mutual inductance is M . a. Show that this combination can be replaced by a single coil of equivalent inductange given by L_(eq) = L_(1) + L_(2) + 2M . b. How could the coils be reconnected by yieldings an equivalent inductance of L_(eq) = L_(1) + L_(2) - 2M .

Two coils of self inductance 100 mH and 400 mH are placed very closed to each other. Find maximum mutual inductance between the two when 4 A current passes through them.

Mutual inductance of two coils can be increased by

RESONANCE-ELECTROMAGNETIC INDUCTION-Exercise
  1. An electron is moving near to a conducting loop then the induced curre...

    Text Solution

    |

  2. The magnetic flux linked with a coil, in webers, is given by the equat...

    Text Solution

    |

  3. A metallic conductor of 1m length is rotated verically its one end at ...

    Text Solution

    |

  4. The resistance of a coil is 5 ohm and a current of 0.2A is induced in ...

    Text Solution

    |

  5. If the length and area of cross-section of an inductor remain same but...

    Text Solution

    |

  6. Self-inductance of a solenoid depend on-

    Text Solution

    |

  7. When current flowing in a coil changes from 3A to 2A in one millisecon...

    Text Solution

    |

  8. In the figure magnetic energy stored in the coil is

    Text Solution

    |

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

    Text Solution

    |

  10. Energy is stored in the choke coil in the form of

    Text Solution

    |

  11. The self-inductances of two identical coils are 0.1H. They are wound o...

    Text Solution

    |

  12. The magnetic flux through a circuit of resistance R changes by an amou...

    Text Solution

    |

  13. A conducting circular loop is placed in a uniform magnetic field, B=0....

    Text Solution

    |

  14. Which of the following is proportional to energy density in magnetic f...

    Text Solution

    |

  15. When two co-axial coils having same current in same direction are brin...

    Text Solution

    |

  16. A magnetic field can be produced by

    Text Solution

    |

  17. A bar magnet is dropped between a current carrying coil. What would be...

    Text Solution

    |

  18. Lenz's law gives:

    Text Solution

    |

  19. Statement 1: Electric field produced by changing magnetic field is non...

    Text Solution

    |

  20. Statement I: Two coaxial conducting rings of different radii are place...

    Text Solution

    |