Home
Class 12
PHYSICS
For an RLC circuit driven with voltage o...

For an RLC circuit driven with voltage of amplitude `v_(m)` and frequency `omega_(0)=1/sqrt(LC)` the current exibits resonance. The quality factor, Q is given by :

A

`(omega_(0)L)/(R)`

B

`(omega_(0)R)/(L)`

C

`(R)/(omega_(0)C)`

D

`(CR)/(omega_(0))`

Text Solution

Verified by Experts

The correct Answer is:
A

Quality factor Q = `(omega_(0))/(2Deltaomega) = (omega_(0)L)/(R)`
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

    DISHA PUBLICATION|Exercise Exercise - 1 : CONCEPT BUILDER (TOPIC 1: Alternating Current, Voltage and Power)|20 Videos
  • ALTERNATING CURRENT

    DISHA PUBLICATION|Exercise Exercise - 1 : CONCEPT BUILDER (Topic 2: A.C Circuits and Power Factor)|31 Videos
  • ATOMS

    DISHA PUBLICATION|Exercise EXERCISE-2: CONCEPT APPLICATOR|30 Videos

Similar Questions

Explore conceptually related problems

A series circuit consisting of a capacitor with capacitance C=22 mu F and a coil with active resistance R=20 Omega and iniductance L=0.35 H is connected to a source of alternating voltage with amplitude V_(m)=180 V and frequency omega=314 s^(-1) . Find : (a) the current amplitude in the circuit, (b) the phase difference between the current and the external voltage , (c) the amplitudes of voltage across the capacitor and the coil.

A series LCR circuit is designed to resonate at an angular frequency omega_(0)=10^(5)rad/s The circuit draws 16W power from 120V source at resonance.The value of resistance R in the circuit is

A series RLC circuit is in resonance with a source of frequency omega_(0) = 10 MHz. The current amplitude in the circuit is I_(0) . It was found that when a different source of frequency omega=omega_(0)+Deltaomega[Deltaomega=10KHz] was used the current amplitude in the circuit was only 1% of I_(0) . Find the inductance in the circuit if it is known that resistance in the circuit is R = 0.314 Omega .

A sinusoidal voltage of amplitude 5V is applied to resistance of 500 Omega . The r.m.s. current in the circuit is

DISHA PUBLICATION-ALTERNATING CURRENT -Exercise -2 : Concept Applicator
  1. For an RLC circuit driven with voltage of amplitude v(m) and frequency...

    Text Solution

    |

  2. A series LR circuit is connected to an ac source of frequency omega an...

    Text Solution

    |

  3. An inductor (L = 100 mH), a resistor (R = 100 (Omega)) and a battery (...

    Text Solution

    |

  4. The primary of a transformer when connected to a dc battery of 10 volt...

    Text Solution

    |

  5. An inductive coil has resistance of 100 Omega. When an ac signal of fr...

    Text Solution

    |

  6. If a direct current of value a ampere is superimposed on an alternativ...

    Text Solution

    |

  7. In the circuits (A) and (b) switches S(1) and S(2) are closed at t = 0...

    Text Solution

    |

  8. Combination fo two identical capacitors, a resistor R and a dc voltage...

    Text Solution

    |

  9. In an alternating current circuit in which an inductance and capacitan...

    Text Solution

    |

  10. In a uniform magneitc field of induced B a wire in the form of a semic...

    Text Solution

    |

  11. A capacitor of 10 (mu)F and an inductor of 1 H are joined in series. A...

    Text Solution

    |

  12. A current source sends a current I=(i0) cos (omegat), When connected a...

    Text Solution

    |

  13. In a series LCR circuit R= 200(Omega) and the voltage and the frequenc...

    Text Solution

    |

  14. An ideal efficient transformer has a primary power input of 10 kW.The ...

    Text Solution

    |

  15. In the circuit shown in fig. R is a pure resistor, L is an inductor of...

    Text Solution

    |

  16. An inductive circuit contains a resistance of 10 ohms and an inductanc...

    Text Solution

    |

  17. In given circuit capacitorinitially uncharged.Now at t = 0 switch S is...

    Text Solution

    |

  18. In the circuit shown below, the key K is closed at t = 0. The current ...

    Text Solution

    |

  19. In a sereis L-C-R circuit, C = 10^(-11) Farad, L = 10^(-5) Henry and R...

    Text Solution

    |

  20. In an LCR circuit shown in the following figure, what will be the read...

    Text Solution

    |

  21. An AC voltage is applied to a resistance R and an inductance L in seri...

    Text Solution

    |