Home
Class 12
PHYSICS
The LC product of a tuned amplifier circ...

The LC product of a tuned amplifier circuit require to generate a carrier wave of 1 MHz for amplitude modulation is

A

`1.5xx10^(-14)s`

B

`1.2xx10^(-12)s`

C

`3.2xx10^(-12)s`

D

`2.5xx10^(-14) s`

Text Solution

Verified by Experts

The correct Answer is:
D
Frequency of tuned amplifier is
`v=(1)/( 2pisqrt(LC))`
As per question, `v=1 MHz=10^(6)Hz`
or `10^(6)=(1)/(2pisqrt(LC))` or `LC=(1)/(4pi^(2)(10^(6))^(2))=2.5xx10^(-14)s`
Promotional Banner

Topper's Solved these Questions

  • COMMUNITCATION SYSTEMS

    NCERT FINGERTIPS|Exercise Higher Order Thinking Skills|10 Videos

  • COMMUNITCATION SYSTEMS

    NCERT FINGERTIPS|Exercise NCERT Exemplar|18 Videos

  • COMMUNITCATION SYSTEMS

    NCERT FINGERTIPS|Exercise Modulation And Its Necessity|14 Videos

  • ATOMS

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

  • CURRENT ELECTRICITY

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

Similar Questions

Explore conceptually related problems

Compute LC product of a tuned amplifer circuit required to generate a carrier wve of 1 MHz for amplitude modulation

A tuned amplifier circuit is used to generate a carrier frequency of 2 MHz for the amplitude modulation. The value of sqrt(LC) is

Why are broadcast frequencies of carrier waves sufficiently spaced in amplitude modulated waves ?

A speech signal of 3 kHz is used to modulate a carrier signal of frequency 1 MHz , using amplitude modulation. The frequencies of the side bands will be

A speech signal of 3 kHz is used to modulate a carrier signal of frequency 1 MHz, using amplitude modulation. The frequencies of the side bands will be

An audio signal of amplitude 0.1 V is used is used in amplitude modulation of a carrier wave of amplitude 0.2 V. Calculate the modulation index.

A sinusoidal carrier voltage of frequency 1200 kHz is amplitude modulated by a sinusoidal voltage of frequnecy 20 kHz. The maximum and minimum modulated carrier amplitudes of 100 V and 90 V are produced. Calculate the frequency of lower and upper side bands, unmodulated carrier amplitude, modulation index and amplitude of each side band.

Both amplitude modulation (AM) and frequency modulation (FM) are used for radio broadcasting. The amplitude of the high frequency carrier wave is varied or modulated in accordance with the variations in the amplitude of the audio signals that are to be transmitted, in te process of amplitude modulation in frequency modulation te amplitude of the carrier remains constant but its frequency is varied inn accordance withh the audio signal. Reception with AM signals is in general is affected by interference of various kinds ad elaborated equipment is required for FM broadcast. A radio frequency carrier wave can be modulated using a-

NCERT FINGERTIPS-COMMUNITCATION SYSTEMS-Amplitude Modulation
  1. A signal wave of frequency 12 kHz is modulated with a carrier wave of ...

    Text Solution

    |

  2. A message signal of frequency 10 kHz and peak voltage 10 volt is used ...

    Text Solution

    |

  3. The maximum amplitude of an AM wave is found to be 15 V while its mini...

    Text Solution

    |

  4. A modulating signal is a square wave as shown in figure. The carr...

    Text Solution

    |

  5. A sinusoidal voltage amplitude modulates another sinusoidal voltage of...

    Text Solution

    |

  6. In an amplitude modulation with modulation index 0.5 the ratio of the ...

    Text Solution

    |

  7. A carrier wave of peak voltage 12 V is used to transmit a message sign...

    Text Solution

    |

  8. An amplitude modulated wave is as shown in figure. Calculate (i) the p...

    Text Solution

    |

  9. Compute LC product of a tuned amplifer circuit required to generate a ...

    Text Solution

    |

  10. The frequency response curve (figure) for the filter circuit used for ...

    Text Solution

    |

  11. A signal wave of frequency 12 kHz is modulated with a carrier wave of ...

    Text Solution

    |

  12. A message signal of frequency 10 kHz and peak voltage 10 volt is used ...

    Text Solution

    |

  13. The maximum amplitude of an amplitude modulated wave is found to be 15...

    Text Solution

    |

  14. A modulating signal is a square wave as shown in figure. The carr...

    Text Solution

    |

  15. A sinusoidal voltage amplitude modulates another sinusoidal voltage of...

    Text Solution

    |

  16. In an amplitude modulation with modulation index 0.5 the ratio of the ...

    Text Solution

    |

  17. A carrier wave of peak voltage 12 V is used to transmit a message sign...

    Text Solution

    |

  18. An amplitude modulated wave is as shown in figure. Calculate (i) the p...

    Text Solution

    |

  19. The LC product of a tuned amplifier circuit require to generate a carr...

    Text Solution

    |

  20. The frequency response curve (figure) for the filter circuit used for ...

    Text Solution

    |