Home
Class 12
PHYSICS
A transmitter supplies 9 kw to the aeria...

A transmitter supplies `9 kw` to the aerial when unmodulated. The power radiated when modulation index is `60 %`, is

A

`9.72 kw`

B

`9 kw`

C

`5.4 kw`

D

`10.62 kw`

Text Solution

Verified by Experts

The correct Answer is:
D
`P_(t) = P_(c )(1 +(m^(2))/(2)) = 9 (1 + ((0.6)^(2))/(2)) = 9 [1 + (0.36)/(2)]`
`= 9 [1 + 0.18] = 9 [1.18] = 10.62 kw`
Promotional Banner

Topper's Solved these Questions

  • TEST PAPERS

    FIITJEE|Exercise PHYSICS|747 Videos

  • SIMPLE HARMONIC MOTION

    FIITJEE|Exercise Assignment Problems (Objective) (Level-II)|20 Videos

  • WORK, ENERGY AND POWER

    FIITJEE|Exercise COMPREHENSIONS ( Comprehension-II)|5 Videos

Similar Questions

Explore conceptually related problems

A transmitter supplies 9kW to the aerial when unmodulated. The power radiated when modulated to 40% is

A transmitter supplies 6 kW to the aerial when unmodulated. The power radiated when modulated to 60% is

A transmitter supplies 9 kW to the aerial when unmodulated. The power radiation when modulated to 40% is

An AM transmitter radiates 70 kW of carrier power. The radiated power at 75% modulation would be

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

A broadcast AM transmitter radiates 20 kW of carrier power . What will be radiated power at 25% modulation ?

A carrier wave of peak voltage 15 V is used to transmit a message signal. Find the peak voltage of the modulating signal in order to have a modulation index of 60%.

A broadcast AM transmitter radiates 50 kW of carrier power . What will be the radiated power at 50% modulation ?

A Broadcast AM transmitter radiates 50 kW of carrier power. What will be the radiated power at 85% modulation ?

FIITJEE-TEST PAPERS-PHYSICS
  1. The magnetic field of a cylindrecal magnet that has a pole - face rad...

    Text Solution

    |

  2. The system is released from rest from the positon shown in the diagram...

    Text Solution

    |

  3. A transmitter supplies 9 kw to the aerial when unmodulated. The power ...

    Text Solution

    |

  4. The combination of the gates shown in figure produces

    Text Solution

    |

  5. Two radioactive X(1) and X(2) have decay constants 10 lambda and lamb...

    Text Solution

    |

  6. When the hydrogen atom is raised from the ground state to fifth state

    Text Solution

    |

  7. An an ideal parallel LC circuit, the capacitor is charged by connectin...

    Text Solution

    |

  8. The graph between (1)/(v) and (1)/(u) for a concave mirror looks like.

    Text Solution

    |

  9. In a voltage regulating of zener diode, the graph of output voltage v(...

    Text Solution

    |

  10. From ideal instruments, current measured is I = 10.0 amp, potential di...

    Text Solution

    |

  11. A cube of mass m and side a is moving along a plane with constant spee...

    Text Solution

    |

  12. A disc of radius R is rolling purely on a flat horizontal surface, wit...

    Text Solution

    |

  13. A small mass slides down an inclined plane of inclination theta the ho...

    Text Solution

    |

  14. Acceleration of a paritcle moving in x-y plane varies with time t as. ...

    Text Solution

    |

  15. Both the blocks as shown in figure are given together a horizontal vel...

    Text Solution

    |

  16. Figure here shows the vertical cross-section of a vessel filled with a...

    Text Solution

    |

  17. Show that the volume thermal expansion coefficient for an ideal gas at...

    Text Solution

    |

  18. A heavy but uniform rope of lenth L is suspended from a ceiling. (a) W...

    Text Solution

    |

  19. A particle moves according to the law, x=acos(pit//2). . What is the d...

    Text Solution

    |

  20. Two concentric spherical sheels are as shown in figure. The V - r grap...

    Text Solution

    |