Home
Class 12
PHYSICS
The magnitude inducted e.m.f. in an LR c...

The magnitude inducted e.m.f. in an `LR` circuit at brea of circuit as compared to its value at make of circuit will be

A

less

B

more

C

some times less and some times more

D

nothing can be said

Text Solution

Verified by Experts

The correct Answer is:
2
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

    NARAYNA|Exercise Assertion & Reason|14 Videos
  • ALTERNATING CURRENT

    NARAYNA|Exercise LEVEL - I (C.W)|23 Videos
  • ALTERNATING CURRENT

    NARAYNA|Exercise LEVEL - II(H.W)|13 Videos
  • ATOMIC PHYSICS

    NARAYNA|Exercise LEVEL-II (H.W)|14 Videos

Similar Questions

Explore conceptually related problems

L.R. Circuit

The induced e.m.f in a circuit

Time constant of LR circuit will be

Resultant inductance of the circuit will be __

In an L-R circuit connected to a battery of constant e.m.f. E switch S is closed at time t=0. If e denotes the magnitude of induced e.m.f. across inductor and i the current in the circuite at any time t. Then which of the following graphs shows the variation of e with i ?

In given LR circuit the switch S is closed at time t=0 then

Combination of circuit |RC and LR Circuit| Phasor diagram

The current in a LR circuit builds up to 3/4 th of its steady state value in 4s. The time constant of this circuit is

In the given LR circuit the source has angular frequency omega The power factore of the circuit is .

NARAYNA-ALTERNATING CURRENT-C.U.Q
  1. If a capacitor is connected to two different A.C generators, then the ...

    Text Solution

    |

  2. In general in an alternating current circuit

    Text Solution

    |

  3. The magnitude inducted e.m.f. in an LR circuit at brea of circuit as c...

    Text Solution

    |

  4. The emf and current in a circuit are such that E = E(0) sin omega t an...

    Text Solution

    |

  5. The correct variation of resistance R with frequency f is given by

    Text Solution

    |

  6. Same current is flowing in two alternating circuits. The first circuit...

    Text Solution

    |

  7. When an a.c source is connected across a resistor

    Text Solution

    |

  8. The phase angle between current and voltage in a purely inductive circ...

    Text Solution

    |

  9. Ratio of impedence to capactive reactance has

    Text Solution

    |

  10. An inductor-coil having some resistance is connected to an AC source. ...

    Text Solution

    |

  11. Why the current does not rise immediately in a circuit containing indu...

    Text Solution

    |

  12. In an AC circuit containing only capacitance the current

    Text Solution

    |

  13. A bulb is connected first with DC and the then AC of same voltage then...

    Text Solution

    |

  14. A capacitor of capacity C is connected in A.C circuit. If the applied ...

    Text Solution

    |

  15. At low frequency a condenser offers

    Text Solution

    |

  16. Statement (A) : The reactance offered by an inductance in A.C. Circuit...

    Text Solution

    |

  17. Statement (A) : With increase in frequency of AC supply inductive reac...

    Text Solution

    |

  18. In an A.C circuit having resistance and capacitance

    Text Solution

    |

  19. Select the correct options among the following In an R-C circuit (...

    Text Solution

    |

  20. If the frequency of alternating e.m.f. is in L-C-R circuit, then the v...

    Text Solution

    |