Home
Class 12
PHYSICS
A antenna current of an AM broadcast tra...

A antenna current of an AM broadcast transmitter modulated by `50%` is `11 A`. The carrier current is

A

`10.35` A

B

`9.25` A

C

`10` A

D

`5.5` A

Text Solution

Verified by Experts

The correct Answer is:
a

`I_("carrier")=(I_(rms))/(sqrt(1+(m_(a)^(2))/(2)))=(11)/(sqrt((1+(0.5)^(2))/(2)))=10.35A`
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC WAVES AND COMMUNICATION SYSTEM

    A2Z|Exercise Problems Based On Mixed Concepts|39 Videos
  • ELECTROMAGNETIC WAVES AND COMMUNICATION SYSTEM

    A2Z|Exercise Section B - Assertion Reasoning|13 Videos
  • ELECTROMAGNETIC WAVES AND COMMUNICATION SYSTEM

    A2Z|Exercise Section D - Chapter End Test|30 Videos
  • ELECTROMAGNETIC INDUCTION

    A2Z|Exercise Section D - Chapter End Test|30 Videos
  • GEOMETRICAL OPTICS

    A2Z|Exercise Section D - Chapter End Test|30 Videos

Similar Questions

Explore conceptually related problems

The antenna current of an AM transmitter is 10 A when only carrier is sent but increase to 10.1 A when the carrier is modulated sinusoidally. The percentage modulation is

The antenna current of an AM transmitter is 8A when only the carrier is sent but increases to 8.96A when the carrier is modulated sinusoidally . The percentage modulation is

The antenna current. of an AM transmitter is 8A when only carrier is sent but increases to 8.96 A when the carrier is sinusoidally modulated. The percentage modulation is (Give answer in integer form)

When a broadcast AM transmitter is 50% modulated, its antenna current is 12 A. What would be the carrier current?

An AM transmitter records an antenna current of 10.5 A . The antenna current drops to 10 A when only carrier is transmitted . What is the percentage modulation ?

The output current of an 80% mondulating amplitude modulated generator is 1.8A. To what value will the current rise if the generator is additionally modulated by another audiowave of modulation index 0.6?

A transmitter transmits a power of 10 kW when modulation is 50% . Power of carrier wave is

A2Z-ELECTROMAGNETIC WAVES AND COMMUNICATION SYSTEM -Communication System
  1. A ground reciever is receiving a signal at (a) 5 MHz, and (b) 100 MHz,...

    Text Solution

    |

  2. An optical fibre communication system works on a wavelength of 1.3 mu(...

    Text Solution

    |

  3. In an FM system a 7kHz signal modulates 108 MHz carrier so that freque...

    Text Solution

    |

  4. In a radio receiver, the short wave and medium wave station are tuned ...

    Text Solution

    |

  5. A carrier is simultaneously modulated by two sine waves with modulatio...

    Text Solution

    |

  6. A antenna current of an AM broadcast transmitter modulated by 50% is 1...

    Text Solution

    |

  7. Because of tilting, which waves finally disappear?

    Text Solution

    |

  8. A transmitter transmits a power of 10 kW when modulation is 50%. Power...

    Text Solution

    |

  9. A telephone link operating at a center frequency of 10 GHz is etablish...

    Text Solution

    |

  10. If a number of sine waves with modulation indices n(1),n(2),n(3)… modu...

    Text Solution

    |

  11. A transmitter supplies 9 kW to the aerial when unmodulated. The power ...

    Text Solution

    |

  12. The antenna current of an AM transmitter is 8A when only the carrier i...

    Text Solution

    |

  13. An AM wave has 1800 watt of total power content, For 100% modulation t...

    Text Solution

    |

  14. In an FM system a 7kHz signal modulates 108 MHz carrier so that freque...

    Text Solution

    |

  15. In which of the following remote sensing technique is not used?

    Text Solution

    |

  16. The total power content of an AM wave is 1500 W. For 100% modulation, ...

    Text Solution

    |

  17. The modulation index of an FM carrier having a carrier swing of 200kHz...

    Text Solution

    |

  18. A 1500 Hz modulating voltage fed into an FM generator produces a freq...

    Text Solution

    |

  19. The bit rate for a signal, which has a sampling rate of 8 kHz and whar...

    Text Solution

    |

  20. Figure shows a capacitor made of two circular plates each of radius 12...

    Text Solution

    |