Home
Class 12
PHYSICS
Average power in the L-C-R circuit depen...

Average power in the L-C-R circuit depends upon

A

current

B

phase different only

C

emf

D

current, emf and phase difference

Text Solution

Verified by Experts

The correct Answer is:
D

`overline(P)=e_(rms)I_(rms)cosphi`.
Promotional Banner

Topper's Solved these Questions

  • ELASTICITY

    NIKITA PUBLICATION|Exercise MCQ|314 Videos
  • ELECTRONS AND PHOTONS

    NIKITA PUBLICATION|Exercise MCQs|162 Videos

Similar Questions

Explore conceptually related problems

Derive an experssion for the average power in LCR circuit connected to a.c. supply. Hence define power factor. Show that average power cousumed per cycle in an a.c. circuit conataining an ideal capacitor is zero.

The average power in LCR series circuit is

R.Q. would depend upon

R.Q. would depend upon

In the L-C-R circuit as shown in figure,

A series LCR circuit with r = 10 ohm, L = 2 H and C = 25 mu F is connected to a varialbe frequency 200 V a.c. supply. When the frequency of the supply equals the natural frequency of the circuit, what is the average power transferred to the circuit in one complete cycle ?

Does the steady state current in RL circuit depend upon L ?

R-L-C circuit and examples

In L-C-R series circuit

NIKITA PUBLICATION-ELECTROMAGNETIC INDUCTION-MCQs
  1. An alternating voltage E=200sqrt(2)sin(100t) is connected to a 1 micro...

    Text Solution

    |

  2. Same current is flowing in two alternating circuits. The first circuit...

    Text Solution

    |

  3. In a circuit, the current lags behind the voltage by a phase differenc...

    Text Solution

    |

  4. Average power in the L-C-R circuit depends upon

    Text Solution

    |

  5. A transformer is having 2100 turns in primary and 4200 turns is second...

    Text Solution

    |

  6. When the number of turns and the length of the solenoid are doubled ke...

    Text Solution

    |

  7. When the current changes from +2A to -2A in 0.05s, and emf of 8B is in...

    Text Solution

    |

  8. An alternating voltage E = 200sqrt(2) sin (100 t)V is applied to a 2 m...

    Text Solution

    |

  9. In a series LCR circuit, at resonance, power factor is …….. .

    Text Solution

    |

  10. In series LCR circuit at resonance,

    Text Solution

    |

  11. The self inductane of coil of 400 turns is 8 mH. If current of 5 mA f...

    Text Solution

    |

  12. In LCR series circuit an ac emf of 2 volt and frequency 50 Hz is appli...

    Text Solution

    |

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

    Text Solution

    |

  14. A wire loop is rotated in magneitc field. The frequency of change of d...

    Text Solution

    |

  15. If 'N' is the number of turns in a coil, the value of self inductance ...

    Text Solution

    |

  16. In LCR series circuit , an alternating emf e and current i are given b...

    Text Solution

    |

  17. In electromagnetic wave , according to Maxwell , changing electric fie...

    Text Solution

    |

  18. Same current is flowing in two alternating circuits. The first circuit...

    Text Solution

    |

  19. Two coils A and B have mutual inductance 2xx10^(-2) Henry if the cur...

    Text Solution

    |

  20. The capacity of a parallel plate air capacitor is 2 mu F and voltag...

    Text Solution

    |