Home
Class 12
PHYSICS
In a LCR series resonating circuit. Give...

In a `LCR` series resonating circuit. Give the value of average power loss.

A

`VI`

B

`(VI)/2`

C

`(VI)/(sqrt(2))`

D

`(VI)/(sqrt(3))`

Text Solution

Verified by Experts

The correct Answer is:
B
Average power loss
`lt P geV_(rms).I_(rms).cos phi=V_(rms).I_(rms).(R)/(sqrt(R^(2)+(X_(L)-X_(C))^(2)))`
`=(VI)/2 ( :' X_(L)=X_(C))`
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

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

  • ALTERNATING CURRENT

    A2Z|Exercise AIPMT/NEET Questions|31 Videos

  • ATOMIC PHYSICS

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

Similar Questions

Explore conceptually related problems

In series resonant circuit, at resonance,

In an LCR circuit, at resonance

In a series resonant L-C-R circuit, the power factor is

In an LCR series circuit the current is

In LCR circuit during resonance

In a series LCR resonance circuit, if we change the resistance only, from a lower to higher value :

(a) Explain the term ' Sharpness of resonance' in ac circuit. (b) In a series LCR circuit , V_L = V_C ne V_R . What is the value of power factor for this circuit?

Assertion : In series LCR resonance circuit, the impedance is equal to the ohmic resistance. Reason : At resonance, the inductive reactance exceeds the capacitive reactance.

Assertion : In series LCR resonance circuit, the impedance is equal to the ohmic resistance. Reason : At resonance, the inductive reactance exceeds the capacitive reactance.

In a series LCR circuit

A2Z-ALTERNATING CURRENT-AIIMS Questions
  1. An alternating emf is applied across a parallel combination of a resis...

    Text Solution

    |

  2. An ac source of angular frequency omega is fed across a resistor R and...

    Text Solution

    |

  3. A circuit has a resistance of 11 Omega, an inductive reactance of 25 O...

    Text Solution

    |

  4. A coil of 200Omega resistance and 1.0H inductance is conneted to an AC...

    Text Solution

    |

  5. For the series LCR circuit shown in the figure, what is the resonance ...

    Text Solution

    |

  6. A coil of inductance 8.4 mH and resistance 6 (Omega) is connected to a...

    Text Solution

    |

  7. In an LCR circuit as shown below both switches are open initially. Now...

    Text Solution

    |

  8. A step-down transformer is used on a 1000 V line to deliver 20A at 120...

    Text Solution

    |

  9. In a LCR series resonating circuit. Give the value of average power lo...

    Text Solution

    |

  10. Assertion: If the frequency of alternating current in an AC is circuit...

    Text Solution

    |

  11. Assertion: The quantity L//R possesses dimensions of time. Reason: T...

    Text Solution

    |

  12. Assertion: Faraday's laws are consequences of conservation of energy. ...

    Text Solution

    |

  13. Assertion: An electric lamp connected in series with a variable capaci...

    Text Solution

    |

  14. Assertion: The probability of an electric bulb fusing is higher at the...

    Text Solution

    |

  15. Assertion : An electric motor will have maximum efficiency when back e...

    Text Solution

    |

  16. Assertion: In electric circuits, wires carrying currents in opposite d...

    Text Solution

    |

  17. Assertion: Eddy current is produced in any metallic conductor when mag...

    Text Solution

    |

  18. Assertion: Only a charge in magnetic flux will maintain an induced cur...

    Text Solution

    |

  19. Assertion: In series LCR circuit resonance can take place. Reason: R...

    Text Solution

    |

  20. Assertion: The alternating current lags behined the e.m.f. by a phase ...

    Text Solution

    |