Home
Class 12
PHYSICS
In an RLC circuit, capacitance is change...

In an RLC circuit, capacitance is changed from C to 2C. For the resonant frequency to remain unchanged, the inductance should be changed from L to :

A

4L

B

L/4

C

L/2

D

2L

Text Solution

Verified by Experts

The correct Answer is:
C
`e=0.36xx10^(-3)V`
`LC=`constant
i.e., `L_(1)C_(1)=L_(2)C_(2)`
`L_(2)=(L_(1)C_(1))/(C_(2))=(LxxC)/(2C)=(L)/(2)`
Promotional Banner

Topper's Solved these Questions

  • ELASTICITY

    NIKITA PUBLICATION|Exercise MCQ|314 Videos

  • ELECTRONS AND PHOTONS

    NIKITA PUBLICATION|Exercise MCQs|162 Videos

Similar Questions

Explore conceptually related problems

In a RLC circuit capacitance is changed from C to 2 C. For the resonant frequency to remain unchanged, the inductance should be changed from L to

in a LCR circuit capacitance is chagned from C to 2C. For the resomat frequency to remain unchaged, the inductance should be chagned from L to

In a series resonant L-C-R circuit, the capacitance is changed from C to 3C. For the same resonant frequency, the inductance should be changed from L to

In an LCR circuit the capacitance is changed from C to 4C. For the same resonant frequency, the inductance should be changed from L to

In an LCR series circuit the capacitance is changed from C to 4C For the same resonant fequency the inductance should be changed from L to .

The resonant frequency of an L - C circuit is

In an LCR circuit, the capacitance is made one-fourth, when in resonance. Then what should be the change in inductance, so that the circuit remains in resonance?

In LCR circuit, capacitor C is changed to 4C, then what should be the value of L to keep resonance frequency same

NIKITA PUBLICATION-ELECTROMAGNETIC INDUCTION-MCQs
  1. In a series resonant L-C-R circuit, the power factor is

    Text Solution

    |

  2. A half metre rod is rotating abou tone fixed end perpendicular to unif...

    Text Solution

    |

  3. In an RLC circuit, capacitance is changed from C to 2C. For the resona...

    Text Solution

    |

  4. When a rod of length l is rotated with angular velocity of omega in a ...

    Text Solution

    |

  5. Resistance of earth coil is 7Omega. If flux associated with coil chang...

    Text Solution

    |

  6. In the induction coil, across secondary coil the output voltage is pra...

    Text Solution

    |

  7. A wire of length 2.5 km and resistance 35 Omega has fallen from a heig...

    Text Solution

    |

  8. The average value dissipated by resistance is (I(0)=peak value of curr...

    Text Solution

    |

  9. If a rate of change of current of 4 As^(-1) induces an emf of 20 mV in...

    Text Solution

    |

  10. If the P.D. across the inductor (3mH) is the same as that across the c...

    Text Solution

    |

  11. When a rod of length l is rotated with angular velocity of omega in a ...

    Text Solution

    |

  12. A coil of self inductance 20 mH, having 50 turns, carries a current of...

    Text Solution

    |

  13. A.C. voltmeter is connected to a source of e(0)=141.4 volt, then it wi...

    Text Solution

    |

  14. Inductance of a coil is 5 mH is connected to AC source of 220 V, 50 Hz...

    Text Solution

    |

  15. A rectangular coil of 25 turns, area of 25cm^(2) and resistance of 4 o...

    Text Solution

    |

  16. Henry is equivalent to

    Text Solution

    |

  17. In a purely resistive AS circuit,

    Text Solution

    |

  18. In a series LCR circuit, at resonance, power factor is …….. .

    Text Solution

    |

  19. An alternating voltage E=200sqrt(2)sin(100t) is connected to a 1 micro...

    Text Solution

    |

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

    Text Solution

    |