Home
Class 12
PHYSICS
An e.m.f. of 12 "volts" is induced in a ...

An e.m.f. of `12 "volts"` is induced in a given coil when the current in it changes at the rate of `48` amperes per minute. The self-inductance of the coil is

A

0.25 henry

B

15 henry

C

1.5 henry

D

9.6 henry

Text Solution

Verified by Experts

The correct Answer is:
B
`L=(|e|)/((di)/(dt))=12/(48/60)=(12xx60)/48=15H`
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    ERRORLESS|Exercise NCERT BASED QUESTIONS (APPLICATION OF EMI (Dynamo, Transformer…))|20 Videos

  • ELECTROMAGNETIC INDUCTION

    ERRORLESS|Exercise PAST YEARS QUESTIONS|31 Videos

  • ELECTROMAGNETIC INDUCTION

    ERRORLESS|Exercise NCERT BASED QUESTIONS (Motional EMI)|25 Videos

  • CURRENT ELECTRICITY

    ERRORLESS|Exercise ASSERTION AND REASON|26 Videos

  • ELECTRON, PHOTON, PHOTOELECTRIC EFFECT & X -RAY

    ERRORLESS|Exercise ASSERTION & REASON|27 Videos

Similar Questions

Explore conceptually related problems

An e.m.f. of 12"volts" is produced in a coil when the current in it changes at the rate of 45 amp//minute . The inductance of the coil is

An e.m.f of 40 mV is induced in a solenoid, when the current in it changes at the rate of 2 A//s . The self inductance of the solenoid is

The self-induced e.m.f in a 0.1H coil when the current in it is changing at the rate of 200 ampere//second is

An emf of 30 mV is induced in a coil when current through it is changed at the rate of 6 A // s . What is the self-inductance of the coil?

In a coil, L=5H , current changes at the rate of 2 ampere per second. The induced

An e.m.f. of 100 millivolts is induced in a coil when the current in another nearby coil becomes 10 ampere from zero in 0.1 second. The coefficient of mutual induction between the two coils will be

An e.m.f. of 5 "volt" is produced by a self-inductance, when the current changes at a steady rate from 3 A to 2A 1 millisecond. The value of self-inductance is

The back e.m.f. induced in a coil, when current change from 1 ampere to zero in one millisecond , is 4 volts , the self-inductance of the coil is

If the back e.m.f. induced in a coil, when current changes from 1A to zero in one millisecond, is 5 volts, the self-inductance of the coil is

The average e.m.f. induced in a coil in which the current changes from 2 amperes to 4 amperes in 0.05 seconds is 8 volts. What is the self-inductance of the coil?

ERRORLESS-ELECTROMAGNETIC INDUCTION-NCERT BASED QUESTIONS (STATIC EMI)
  1. Two identicaly induction coils each of inductance L joined in series ...

    Text Solution

    |

  2. An e.m.f. of 5 "volt" is produced by a self-inductance, when the curre...

    Text Solution

    |

  3. An e.m.f. of 12 "volts" is induced in a given coil when the current in...

    Text Solution

    |

  4. The current in a coil changes from 4 ampere to zero in 0.1s. If the a...

    Text Solution

    |

  5. When the current through a solenoid increases at a constant rate, the ...

    Text Solution

    |

  6. The number of turns of primary and secondary coils of a transformer ar...

    Text Solution

    |

  7. A short soleniod of radius a, number of turns per unit length n(1), an...

    Text Solution

    |

  8. According to phenomenon of mutual inductance,

    Text Solution

    |

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

    Text Solution

    |

  10. What is the mutual inductance of a two-loop system as shown with centr...

    Text Solution

    |

  11. A 50 Hz ac current of peak value 2 A flows through one of the pair of ...

    Text Solution

    |

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

    Text Solution

    |

  13. A solenoid has 2000 turns wound over a length of 0.3 m. Its cross-sect...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  16. A coil of resistance 10Omega and an inductance 5H is connected to a 10...

    Text Solution

    |

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

    Text Solution

    |

  18. A coil of self-inductance 50 henry is joined to the terminals of a ba...

    Text Solution

    |

  19. A coil of 40 H inductance is connected in series with a resistance of ...

    Text Solution

    |

  20. A uniformly wound solenoid coil of self inductance 1.8xx10^(-4)H and r...

    Text Solution

    |