Home
Class 12
PHYSICS
A transistor -oscillator using a resonan...

A transistor -oscillator using a resonant circuit with an inductor `L` (of negligible resistance) and a capacitor `C` in series produce oscillations of frequency `f`. If `L` is doubled and `C` is changed to `4C`, the frequency will be

A

`(f)/(4)`

B

`8f`

C

`(f)/(2sqrt(2))`

D

`(f)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • ROTATIONAL MOTION

    NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)|Exercise Exercise|74 Videos

  • THERMAL AND CHEMICAL EFFECTS OF CURRENt

    NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)|Exercise Exercise|34 Videos

Similar Questions

Explore conceptually related problems

A resistor R , an inductor L and a capacitor C are connected in series to an oscillator of frequency n . If the resonant frequency is n_r, then the current lags behind voltage, when

A resistor R ,an inductor L , and a capacitor C are connected in series to an oscillator of freqency upsilon .if the resonant frequency is upsilon_(r) , then the current lags behind voltage, when:

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 resistor R , an inductor L and a capacitor C are connected in series to a source of frequency n . If the resonant frequency is n_(r) , then the current lags behind voltage when

An oscillator circuit consists of an inductance of 0.5mH and a capacitor of 20muF . The resonant frequency of the circuit is nearly

An oscillator circuit consists of an inductance of 0.5mH and a capacitor of 20muF . The resonant frequency of the circuit is nearly

In series L-C-R resonant circuit, to increase the resonant frequency

NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-SOLID AND SEMICONDUCTOR DEVICES-Exercise
  1. A forward biased diode is

    Text Solution

    |

  2. A transistor is operated in common emitter configuration at constant c...

    Text Solution

    |

  3. A transistor -oscillator using a resonant circuit with an inductor L (...

    Text Solution

    |

  4. Copper has face centred cubic (fc c) lattice with interatomic spacing ...

    Text Solution

    |

  5. Choose the only false statement form the following

    Text Solution

    |

  6. Carbon , silicon and germanium have four valence elcectrons each . The...

    Text Solution

    |

  7. Zener diode is used for

    Text Solution

    |

  8. Application of a forward biase to a "p-n" junction:

    Text Solution

    |

  9. Of the diodes shown in the following diagrams, which one is reverse bi...

    Text Solution

    |

  10. In a "p-n" junction photo cell, the value of the photo electromotive f...

    Text Solution

    |

  11. The output of OR gate is 1

    Text Solution

    |

  12. The peak voltage in the output of a half-wave diode rectifier fed with...

    Text Solution

    |

  13. In semiconductors at a room tempreture

    Text Solution

    |

  14. A npn transistor conducts when

    Text Solution

    |

  15. If a full wave reactifier circuit is operating from 50 Hz mains, the f...

    Text Solution

    |

  16. Barrier potential of a "p-n" junction diode does not depend on

    Text Solution

    |

  17. Following diagram performs the logic function of

    Text Solution

    |

  18. For the given circuit of PN-junction diode, which of the following sta...

    Text Solution

    |

  19. For conduction in a "p-n" junction, the biasing is

    Text Solution

    |

  20. For a transistor (I(C))/(I(E))=0.96, then current gain for common emit...

    Text Solution

    |