Home
Class 12
PHYSICS
A series LCR circuit acts as a purely re...

A series LCR circuit acts as a purely resistive circuit, when

A

ωL>1/ωc

B

ωL<1/ωc

C

ωL=1/ωc

D

none of these.

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • QUESTION PAPER 2015

    UNITED BOOK HOUSE|Exercise EXERCISE|56 Videos
  • QUESTION PAPER 2017

    UNITED BOOK HOUSE|Exercise EXERCISE|68 Videos

Similar Questions

Explore conceptually related problems

Statement I: A series LCR circuit when connected to an ac source gives the terminal potential difference 50 V across each of resistor R, inductor L and capacitor C. Then the terminal potential difference across LC is zero. Statement II: The terminal alternating voltages across the inductor and capacitor in a series LCR circuit are in opposite phase.

How can an LCR circuit be made purely resistance?

In an alternating series LCR circuit ,what is the phase difference between the voltage drop across L and C?

A series LCR circuit resonates at 10 kHz. If the capacitor is 0.01 muF , the inductance used is approximately

A series LCR circuit containing a resistance of 120Omega has angular resonance frequency 4times10^5rad//s .At resonance, the voltages across resistance and inductancr are 60V and 40V, respectively. Find the values of L and C. At what frequency , does not current in the circuit lag behind the voltage by 45^@ ?

When the frequency of the ac voltage applied to a series LCR circuit is gradually increased from a low value , the impedance of the circuit.

An emf of V= V_0sin omegat is applied on a series LCR circuit. IF there is no phase difference between the voltage and current then,

An alternating current is flowing through a series LCR circuit. It is found that the current reaches a value of 1mA at bolth 200 Hz and 800Hz frequency. What is the resonance frequency of the circuit?

A series LC circuit has L=0.405 H and C=25muF . The resistance R is zero, Find the frequency of resonance.

UNITED BOOK HOUSE-QUESTION PAPER 2016-EXERCISE
  1. In an astronomical telescope, focal length of the objective is made

    Text Solution

    |

  2. A conducting circular loop of radius r carries a constant current l. I...

    Text Solution

    |

  3. A series LCR circuit acts as a purely resistive circuit, when

    Text Solution

    |

  4. The relative magnetic permeability of a diamagnetic substance is

    Text Solution

    |

  5. what do you mean by magnetic flux density?

    Text Solution

    |

  6. What is the Q-factor?

    Text Solution

    |

  7. What is the decimal equivalent of the binary number 10011?

    Text Solution

    |

  8. Draw the symbol of a two input NOR gaste.

    Text Solution

    |

  9. What is the magnitude of force experienced by a stationary charge plac...

    Text Solution

    |

  10. In an electron is not deflected when passing through a certain region ...

    Text Solution

    |

  11. Write down lens maker's formula.

    Text Solution

    |

  12. What should be the value of the shunt to be connected in parallel to a...

    Text Solution

    |

  13. Equal number of identical cells are joined in series and again in para...

    Text Solution

    |

  14. In a compact coil of 50 turns, the current strength is 10A and the rad...

    Text Solution

    |

  15. Mention two characteristics of electromagnetic waves.

    Text Solution

    |

  16. In a hydrogen atom, an electron of charge e revolves in an orbit of ra...

    Text Solution

    |

  17. The energy of an excited hydrogen atom is -1.51 eV. Determine the angu...

    Text Solution

    |

  18. Why is satellite used for TV transmission to far places?

    Text Solution

    |

  19. What do you mean by demodulation? What is the importance of modulation...

    Text Solution

    |

  20. What is an equipotential between the plates of a parallel plate capaci...

    Text Solution

    |