Home
Class 12
PHYSICS
The peak power consumed by a resistive c...

The peak power consumed by a resistive coil when connected to an AC source is `80 W`. Find the energy consumed by the coil in 1000 seconds which is many times larger than the time period of the source.

Text Solution

Verified by Experts

Here `P_0 = 80 W`
`P_(rms) = P_0/2 = 40 W`
Energy consumed `=P xx t`
` 40 xx 100`
`=4000J = 4.0KJ`.
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

    HC VERMA|Exercise Objective 2|7 Videos

  • BOHR'S MODEL AND PHYSICS OF THE ATOM

    HC VERMA|Exercise Exercises|46 Videos

Similar Questions

Explore conceptually related problems

A 100W-220V bulb is connected to 110 V source. Calculate the power consumed by the bulb.

Two bulbs when connected in parallel to a source take 60 W each, the power consumed, when they are connected in series with the same source is

100 W,220V V bulb is connected to 110V source. Calculate the power consumed by the bulb.

Two bulbs when connected in parallel to a source take 100 W each. The total power consumed when they are connected in series with the same source is

The resistive network shown below is connected to a D.C. source of 16V. The power consumed by the network is 4 Watt. The value of R (in Omega ) is _______.

A coil of inductance 0.2 H and 1.0 W resistance is connected to a 90 V source. At what rate will the current in the coil grow at the instant the coil is connected to the source?

An electric kettle has tow heating coils. When one of the coils connected to an AC source, the water in the kettle boils in 10 min. when the other coil is used the water boils in 40 min. if both the coils are connected in parallel, the time taken by the same quantity of water of boil will be

Inductance of a coil is 5 mH is connected to AC source of 220 V, 50 Hz. The ratio of AC to DC resistance of the coil is

Two resistors of 6 Omega " and " 9 Omega are connected in series to a 120 V source. The power consumed by the 6 Omega resistor is

Two resistors of 6 Omega and 9 Omega are connected in series to a 120 volt source. The power consumed by the 6 Omega resistor is

HC VERMA-ALTERNATING CURRENT-Exercises
  1. Find the time required for a 50 Hz alternating current to change its v...

    Text Solution

    |

  2. The household suply of electricity is at 220 V (rms value) and 50 Hz. ...

    Text Solution

    |

  3. A bulb rated 60 W at 220 V is connected across a household supply of a...

    Text Solution

    |

  4. An electric bulb is designed to operate at 12 volts DC. If this bulb i...

    Text Solution

    |

  5. The peak power consumed by a resistive coil when connected to an AC so...

    Text Solution

    |

  6. The dielectric strength of air is 3.0 xx 10^6 V/m. A parallel-plate ai...

    Text Solution

    |

  7. The current in a discharging LR circuit is given by I = i0 e^(-t/tau) ...

    Text Solution

    |

  8. A capacitor of capacitance 10 muF is connected to an oscillator giving...

    Text Solution

    |

  9. A coil of inductance 5.0 mH and negligible resistance is connected to ...

    Text Solution

    |

  10. A coil has a resistance of 10 Omega and an inductance of 0.4 henry. It...

    Text Solution

    |

  11. A resistor of resistance 100 Omega is connected to an AC source epsilo...

    Text Solution

    |

  12. In a series RC circuit with an AC source, R = 300 Omega, C = 25 muF, e...

    Text Solution

    |

  13. An electric bulb is designed to consume 55 W when operated at 110 volt...

    Text Solution

    |

  14. In a series LCR circuit with an AC source, R = 300 Omega, C = 20 muF, ...

    Text Solution

    |

  15. Consider the situation of the previous problem. Find the average elect...

    Text Solution

    |

  16. An inductance of 2.0 H, a capacitance of 18 muF and a resistance of 10...

    Text Solution

    |

  17. A coil a capacitor and an AC source of rms voltage 24 V are connected ...

    Text Solution

    |

  18. Figure shows a typical circuit for low-pass filter. An AC input Vi = 1...

    Text Solution

    |

  19. A transformer has 50 turns in the primary and 100 in the secondary. If...

    Text Solution

    |