Home
Class 12
PHYSICS
If a current I given by Io sin (omega-pi...

If a current I given by `I_o sin (omega-pi/2)` flowsin an ac circuit across which an potential of e= `e_0sin omegat` has been applied, then the power consumption P in the circuit will be.

A

P=`(e_oi_0)/sqrt2`

B

P=`sqrt2e_oi_o`

C

P=`(e_oi_0)/2`

D

P=0

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • AC CIRCUITS

    CHETANA PUBLICATION|Exercise Exercise|122 Videos
  • Current Electricity

    CHETANA PUBLICATION|Exercise Exercise|92 Videos
CHETANA PUBLICATION-AC CIRCUITS-Exercise
  1. The frequency of ac mainsin India is

    Text Solution

    |

  2. The peak value of 220 volts of ac mainsis

    Text Solution

    |

  3. If a current I given by Io sin (omega-pi/2) flowsin an ac circuit acro...

    Text Solution

    |

  4. In an ac circuit, the current is given by I = 5sin ( 100t-pi/2)and the...

    Text Solution

    |

  5. The frequency of an alternating voltage is 50 cycles//sec and its ampl...

    Text Solution

    |

  6. The ratio of peak value and r.m.s. value of an alternating current is

    Text Solution

    |

  7. The power factor of LCR circuit at resonance is

    Text Solution

    |

  8. Power delivered by the source of the circuit becomes maximum, when

    Text Solution

    |

  9. In a circuit containing an inductance of zero resistance, the e.m.f. o...

    Text Solution

    |

  10. An alternating e.m.f. is applied to purely capacitive circuit. The pha...

    Text Solution

    |

  11. An alternating current of frequency 'f isflowing in a circuit containi...

    Text Solution

    |

  12. The average power dissipation in a pure capacitance in ac circuit is

    Text Solution

    |

  13. An alternating voltage e = 200 sqrt2 sin (100 t) is connected to a 1mi...

    Text Solution

    |

  14. L, C and R denote inductance, capacitance and resistance respectively....

    Text Solution

    |

  15. What will be the phase difference between virtual voltage and virtual ...

    Text Solution

    |

  16. Power factor is maximum in an LCR circuit when

    Text Solution

    |

  17. The capacity of a pure capacitor is1Farad. In DC circuits, its effecti...

    Text Solution

    |

  18. A 220 V, 50 Hz as source is connected to an inductance of 0.2 H and a ...

    Text Solution

    |

  19. For high frequency, a capacitor offers

    Text Solution

    |

  20. In LCR circuit the pd between the terminals of the inductance is 60 V,...

    Text Solution

    |