Home
Class 12
PHYSICS
In L-C-R, A.C. series circuit, L = 9H, R...

In L-C-R, A.C. series circuit, L = 9H, R = 10 `Omega` and C = 100 `mu`F. Hence Q factor of the circuit is ……

A

25

B

45

C

35

D

30

Text Solution

Verified by Experts

The correct Answer is:
D

`Q=1/R sqrt(L/C) =1/10xxsqrt(9/(100xx10^(-6)))=1/10xx3/10^(-2)`
`therefore Q=300/10`=30
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENTS

    KUMAR PRAKASHAN|Exercise SECTION-D MCQs (DARPAN BASED ON TEXTBOOK)|188 Videos
  • ATOMS

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

Similar Questions

Explore conceptually related problems

In an L-C-R A.C. series circuit L = 5H, omega = "100 rads"^(-1) , R= 100 Omega and power factor is 0.5. Calculate the value of capacitance of the capacitor.

Power factor in an L-C-R circuit is ……..

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

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

Obtain the resonant frequency omega_(r ) of a series LCR circuit with L = 2.0H, C = 32 muF and R = 10 Omega . What is the Q-value of this circuit?

A sinusoidal voltage of peak value of 283 V and frequency 50 Hz is applied to a series LCR circuit in which R = 3 Omega , L = 25.48 mH and C = 796 mu F . Find the impedance of the circuit.

In L-C oscillator circuit ………..

In an L-C-R circuit, L = 8H, C = 0.5 mu F, R = 100 Omega connected in series. The resonance frequency of the circuit will be …....

In an L-C-R series circuit, R = 500 Omega L = 10 ml of an ideal inductor and C = 20 muF , thes components connected to A.C. source of 230 V 50Hz. The power in the circuit will be .....

KUMAR PRAKASHAN-ALTERNATING CURRENTS -SECTION-D MCQs (COMPETITIVE EXAMS)
  1. A resistor of R = 6Omega, an inductor of L=1 H and C = 17.36 muF are c...

    Text Solution

    |

  2. What is the average value of the A.C. voltage over one complete cycle ...

    Text Solution

    |

  3. A lamp consumes only 50% of maximum power applied in an A.C. circuit. ...

    Text Solution

    |

  4. The output power in step-up transformer used in practice is …..

    Text Solution

    |

  5. An electric current has both D.C. and A.C. components D.C. component o...

    Text Solution

    |

  6. A current of 25/pi Hz frequency is passing through an A.C. circuit hav...

    Text Solution

    |

  7. In A.C. circuit having only capacitor, the current ......

    Text Solution

    |

  8. For a Step-Down Transformer which of the following Is correct.

    Text Solution

    |

  9. For L-C-R A.C. circuit resonance frequency is 5000 Hz and frequencies ...

    Text Solution

    |

  10. For an A.C. L-C-R series circuit at resonant frequency, which of the f...

    Text Solution

    |

  11. Current of 50/pi Hz frequency is passing | through an A.C. circuit hav...

    Text Solution

    |

  12. In an AC circuit current is 3 A and voltage 210 V and power is 63 W. T...

    Text Solution

    |

  13. For an AC given by I = 50cos(100 t + 45^@)A. The value of rms = ..... ...

    Text Solution

    |

  14. An AC voltage V = 5 cos (1000 t) V is applied to a L-R series circuit ...

    Text Solution

    |

  15. A lamp consumes only 50% of maximum power applied in an A.C. circuit. ...

    Text Solution

    |

  16. In L-C-R, A.C. series circuit, L = 9H, R = 10 Omega and C = 100 muF. H...

    Text Solution

    |

  17. A 15 muF capacitor is connected to a 220 V, 50 Hz a.c. source. Value o...

    Text Solution

    |

  18. Electric quantity ...... is equivalent to mechanical quantity, force c...

    Text Solution

    |

  19. In L-C oscillator, at ... time, energy in capacitor and energy in indu...

    Text Solution

    |

  20. A power transmission line feeds input power a 3300 V to a step down tr...

    Text Solution

    |