Home
Class 12
PHYSICS
For L-C-R, A.C. circuit resonance freque...

For L-C-R, A.C. circuit resonance frequency is 600 Hz and frequencies at half power point are 550 Hz and 650 Hz. What will be the Q-factor ?

A

`1/6`

B

`1/3`

C

6

D

3

Text Solution

Verified by Experts

The correct Answer is:
C

Q-factor , `Q=(omegao)/(Deltaomega)`
`=600/(650-550)=600/100`=6
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENTS

    KUMAR PRAKASHAN|Exercise SECTION-D MCQs (COMPETITIVE EXAMS)|64 Videos
  • ALTERNATING CURRENTS

    KUMAR PRAKASHAN|Exercise SECTION-C NCERT EXEMPLAR (Long Answer)|5 Videos
  • ATOMS

    KUMAR PRAKASHAN|Exercise Section-D -MCQs asked in GUJCET / Board Exam|34 Videos

Similar Questions

Explore conceptually related problems

For L-C-R A.C. circuit resonance frequency is 5000 Hz and frequencies at half power points are 4950 Hz and 5050 Hz. The Q-factor is ……

For an L-C-R series circuit, the Q-factor is …

For an A.C. L-C-R series circuit at resonant frequency, which of the following is wrong ?

Resonance frequency for L-C-R, AC series circuit is f_0 = ……

Fundamental frequency of one closed pipe is 300 Hz. What will be the frequency of its second overtone ?

A series LCR circuit with L = 0.12 H, C = 480 nF, R = 23 Omega is connected to a 230 V variable frequency supply. (a) What is the source frequency for which current amplitude is maximum. Obtain this maximum value. (b) What is the source frequency for which average power absorbed by the circuit is maximum. Obtain the value of this maximum power. (c) For which frequencies of the source is the power transferred to the circuit half the power at resonant frequency? What is the current amplitude at these frequencies? (d) What is the Q-factor of the given circuit?

An L-C-R series A.C. circuit is tuned to resonance. The impedance of the circuit is ……

Two sitar strings A and B playing the note 'Ga' are slightly out of tune and produce beats of frequency 6 Hz. The tension in the string A is slightly reduced and the beat frequency is found to reduce to 3 Hz. If the original frequency of A is 324 Hz. What is the of B ?

Two successive resonance frequencies in an open organ pipe are 1944 Hz and 2592 Hz. Find the length of the tube. The speed of sound in air is 324 m s^-1 .

If the input frequency is 50 Hz in fullwave rectification, what is the output frequency?

KUMAR PRAKASHAN-ALTERNATING CURRENTS -SECTION-D MCQs (DARPAN BASED ON TEXTBOOK)
  1. What is the rms value of the current for A current I=100 cos (200t + 4...

    Text Solution

    |

  2. Resonance frequency for L-C-R, AC series circuit is f0= ……

    Text Solution

    |

  3. For L-C-R, A.C. circuit resonance frequency is 600 Hz and frequencies ...

    Text Solution

    |

  4. For series L-C-R circuit, L = 10mH and C = 10^(-7) F If resonance freq...

    Text Solution

    |

  5. The current from an A.C. source is given by I = 2cos(omegat + phi) the...

    Text Solution

    |

  6. For an L-C-R series circuit, the Q-factor is …

    Text Solution

    |

  7. 20Omega resistor is connected with the A.C. source of V = 282sin (120 ...

    Text Solution

    |

  8. The sharpness of an L-C-R series resonance curve …...

    Text Solution

    |

  9. The value of half power bandwidth of resonance curve of L-C-R series c...

    Text Solution

    |

  10. Q - factor for resonance curve of L-C-R series circuit is defined as ....

    Text Solution

    |

  11. In a series L-C-R circuit R = 100Omega, L = 1H and C= 1 mu E The half ...

    Text Solution

    |

  12. A 10Omega resistance, 5mH inductor and 10muF capacitor are joined in s...

    Text Solution

    |

  13. In a series L-C-R, A.C. circuit, V1, V2 and V3 are the voltmeters conn...

    Text Solution

    |

  14. Figure shows two resonance current with same voltage source for L-C-R...

    Text Solution

    |

  15. If instantaneous current is given by i=4 cos (omegat+phi) ampere, tha...

    Text Solution

    |

  16. In an a.c. circuit , peak value of voltage is 423 volt. Its effective ...

    Text Solution

    |

  17. If E0 represents the peak value of the voltage in an a.c. circuit, the...

    Text Solution

    |

  18. The peak value of 220 volts of a.c. mains is ...... volt.

    Text Solution

    |

  19. In an A.C. circuit of inductance 50 mH with negligible resistance and ...

    Text Solution

    |

  20. An alternating current is given by the equation i = (i1 cos omegat + i...

    Text Solution

    |