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

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

A

`f//2sqrt(2)`

B

`f//2`

C

`f//4`

D

`8f`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    TARGET PUBLICATION|Exercise EVALUATION TEST|8 Videos
  • ELECTROMAGNETIC INDUCTION

    TARGET PUBLICATION|Exercise CRITICAL THINKING|84 Videos
  • ELASTICITY

    TARGET PUBLICATION|Exercise Evaluation test|14 Videos
  • ELECTROSTATICS

    TARGET PUBLICATION|Exercise EVALUATION TEST|14 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

An LC series circuit with an inductance L and a capacitance C has an oscillation frequency f. Two isolated induc tors, each with inductance L, and two capacitors, each with capacitance C, are all wired in series and the circuit is com pleted. The oscillation frequency is

TARGET PUBLICATION-ELECTROMAGNETIC INDUCTION-COMPETITIVE THINKING
  1. An alternating current is flowing through a series LCR circuit. IT is ...

    Text Solution

    |

  2. An oscillator circuit consists of an inductance of 0.5mH and a capacit...

    Text Solution

    |

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

    Text Solution

    |

  4. Out of the following graphs, which grpahs shows the correct relation (...

    Text Solution

    |

  5. In Karnataka, the normal domestic power supply AC is 220V. 50Hz. Here ...

    Text Solution

    |

  6. An dielectric current has both DC and AC components . DC component of ...

    Text Solution

    |

  7. The peak value of an alternating emf E given by E=(E0) cos omega t ...

    Text Solution

    |

  8. In an AC circuit I=100sin 200pit. The time required for the current to...

    Text Solution

    |

  9. A conducting circular loop is placed in a uniform magnetic field 0.04T...

    Text Solution

    |

  10. The magnetic flux across a loop of resistance 10Omega is given by phi=...

    Text Solution

    |

  11. A square loop of wire with side length 10 cm is placed at angle of 45^...

    Text Solution

    |

  12. If in a coil rate of change of area is 5m^(2)//millisecond and current...

    Text Solution

    |

  13. The primary and secondary coils of a transmformer have 50 and 1500 tur...

    Text Solution

    |

  14. Alternating current of peak value ((2)/(pi)) ampere flows through the ...

    Text Solution

    |

  15. A conducting circular loop is placed in a uniform magnetic field, B=0....

    Text Solution

    |

  16. A metallic rod of length 'l' is tied to a string of length 2l and made...

    Text Solution

    |

  17. A rod of 10 cm length is moving perpendicular to uniform magnetic fiel...

    Text Solution

    |

  18. A wire loop is rotated in magneitc field. The frequency of change of d...

    Text Solution

    |

  19. A small square loop of wire of side l is placed inside a large square ...

    Text Solution

    |

  20. The current (I) in the inductance is varying with time according to th...

    Text Solution

    |