Home
Class 12
PHYSICS
Power dissipated in an LCR series circui...

Power dissipated in an LCR series circuit connected to an a.c source of emf `epsilon` is :

A

`(epsilon^2sqrt(R^2+(Lomega-1/(Comega))^-))/R`

B

`(epsilon^2sqrt(R^2+(Lomega-1/(Comega))^2))/R`

C

`(epsilon^2R)/((sqrt(R^2+(Lomega-1/(Comega))^2))`

D

`(epsilon^2R)/(R^2+(Lomega-1/(Comega))^2)`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • DUAL NATURE OF MATTER AND RADIATION

    SARAS PUBLICATION|Exercise EXAMPLE|27 Videos
  • ELECTROMAGNETIC WAVES

    SARAS PUBLICATION|Exercise EXAMPLE|15 Videos

Similar Questions

Explore conceptually related problems

In an LCR series circuit, at resonance

In LCR series circuit, at resonance is ………… .

In RLC series AC circuit at resonance :

If an LCR series circuit is connected to an ac source, then at resonance the voltage across

Three equal resistors connected in series across a source of emf together dissipate 10 watt of power. What would be the power dissipated if the same resistors are connected in parallel across the same source of emf?

A coil having an inductance L and a resistance R is connected to a battery of emf epsilon . Find the time elapsed before (a) the current reaches half its maximum value, (b) the power dissipated in heat reaches half its maximum value and © the magnetic field energy stored in the circuit reaches half its maximum value.

The total power dissipated in watts in the circuit shown here is :

An LCR series circuit with L = 100 mH, C = 100 muF, R = 120 Omega is connected to an AC source of emf epsilon = (30 V) sin (100s^(-1))t . Find the impedane, the peak current and the resonant frequency of the circuit.

SARAS PUBLICATION-ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENTS-EXAMPLE
  1. A beam of electron posses undeflected through mutually perpendicular e...

    Text Solution

    |

  2. In an a.c circuit the e.m.f(e) and the current (i) at any instant are ...

    Text Solution

    |

  3. Power dissipated in an LCR series circuit connected to an a.c source o...

    Text Solution

    |

  4. A thin-ring of radius R metre has charge q coulomb uniformly spread on...

    Text Solution

    |

  5. In the given circuit he reading of voltmeter V1 and V2 are 300 volts e...

    Text Solution

    |

  6. In an ac circuit an alternating voltage e =200 sqrt2 sin 100 t volts i...

    Text Solution

    |

  7. An ac voltage is applied to a resistance R and inductor L in series If...

    Text Solution

    |

  8. A transistor is operated in common emitter configuration at Ve=2 V suc...

    Text Solution

    |

  9. If voltage across a bulb rated 220Volt-100 Watt drops by 2.5% of its r...

    Text Solution

    |

  10. The current (I) in the inductance is varying with time according to t...

    Text Solution

    |

  11. Transfer characteristics output voltage (V0) vs input voltgae (V1) for...

    Text Solution

    |

  12. In an electrical circuit, R, I, C and AC voltage source are all connec...

    Text Solution

    |

  13. A coil of self-inductance L is connected in series with a bulb B and a...

    Text Solution

    |

  14. Ten identical cells connected in series are needed to heat a wire of l...

    Text Solution

    |

  15. A current of 2.5 A flows through a coil of inductance 5 H The magnetic...

    Text Solution

    |

  16. The primary of a transformer when connected to dc battery of 10 volt d...

    Text Solution

    |

  17. Two cities are 150 km apart Electric power is sent from one city to an...

    Text Solution

    |

  18. A transformer having efficiency of 90% is working on 200 V and 3 kW po...

    Text Solution

    |

  19. A resistane 'R' draws power 'P' when connected to an AC source.If an i...

    Text Solution

    |

  20. A conducting square frame of side 'a' and a long straight wire carryin...

    Text Solution

    |