Home
Class 12
PHYSICS
In a series resonant L-C-R circuit, the ...

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

A

3 L

B

`L/3`

C

6L

D

`L/6`

Text Solution

Verified by Experts

The correct Answer is:
B
If C is increased to 3C, L should be reduced to `L//3`.
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENTS

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP - 16|30 Videos

  • ELASTICITY

    MARVEL PUBLICATION|Exercise Test Your Grasp - 5|15 Videos

  • ELECTRONS AND PHOTONS

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP - 17|15 Videos

Similar Questions

Explore conceptually related problems

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 .

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 :

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 series resonant L-C-R circuit, the power factor is

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

For a series L C R circuit, the power loss at resonance is

In a series resonant L–C–R circuit, if L is increased by 25% and C is decreased by 20%, then the resonant frequency will –

A series L-C-R circuit is operated at resonance . Then

MARVEL PUBLICATION-ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENTS -TEST YOUR GRASP - 16
  1. A step down transformer of efficiency 80% is used on a 1000V line to d...

    Text Solution

    |

  2. A coil 10 turns and area 10^(-2)m^(2) rotates in a magnetic field of 0...

    Text Solution

    |

  3. An alternating e.m.f. is given by E=10 cos omega t. If the frequency i...

    Text Solution

    |

  4. In an A.C. Circuit, the current is given by I=6 sin(200 pi t+(pi)/6)...

    Text Solution

    |

  5. An alternating e.m.f. given by e=200 sin 50 t is applied to a circuit ...

    Text Solution

    |

  6. An alternating voltage is represented by V=80 sin(100 pi t)cos(100 p...

    Text Solution

    |

  7. In an A.C. circuit, E=100 sin (500 t) volt and I=1000 sin(500 t +(pi)/...

    Text Solution

    |

  8. In an A.C. circuit, a resistance R=40 Omega and an inductance L are c...

    Text Solution

    |

  9. The inductance of a coil is 10 H. What is the ratio of its reactance w...

    Text Solution

    |

  10. For tuning radio and T.V. circuits, series resonance circuits are used...

    Text Solution

    |

  11. At what frequency 1 Henry inductance offers the same impedance as 1 mu...

    Text Solution

    |

  12. In a series resonant L-C-R circuit, the capacitance is changed from C ...

    Text Solution

    |

  13. A series L-C-R circuit with a resistance of 500 Omega is connected to ...

    Text Solution

    |

  14. At what rate the potential difference between the plates of a parallel...

    Text Solution

    |

  15. A parallel plate capacitor having plate area 0.5 m^(2) and plate separ...

    Text Solution

    |

  16. An a.c. generator consists of a coil of 1000 turns and area 2m^(2). Th...

    Text Solution

    |

  17. In Koyna hydroelectric power station, water stored at a height of 600 ...

    Text Solution

    |

  18. An inductor of inductance 2 mH is connected across a charged capacitor...

    Text Solution

    |

  19. The frequency of the output signal of an LC oscilliator circuit is 100...

    Text Solution

    |

  20. Which is the correct phasor diagram for an a.c. circuit containing onl...

    Text Solution

    |