Home
Class 12
PHYSICS
An rms voltage of 110 V is applied acros...

An rms voltage of 110 V is applied across a series circuit having a resistance `11 Omega` and an impedance `22 Omega`. The power consumed is

A

`275 W`

B

`366 W`

C

`550 W`

D

`1100 W`

Text Solution

Verified by Experts

The correct Answer is:
A

`P=E_(v)I_(V) cos phi , P=E_(v) (E_(v))/R R/Z`
`P=(E_(v)^(2)R)/(Z^(2)) =(110xx110xx11)/(22xx22)W =275W`.
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

    A2Z|Exercise Problems Based On Mixed Concepts|40 Videos
  • ALTERNATING CURRENT

    A2Z|Exercise Section B - Assertion Reasoning|26 Videos
  • ALTERNATING CURRENT

    A2Z|Exercise Different Ac Circuits|30 Videos
  • ATOMIC PHYSICS

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

Similar Questions

Explore conceptually related problems

An rms voltage of 110 V is applied across a series circuit having a resistnce 11 Omega and an impedance 22 Omega . The power consumed is

An rms voltage of 110V is applied across a series circuit having a resistance 11Ω and an impedance 22 Ω. The power consumed is

A circuit has a resistance of 12 Omega and an impedance of 20 Omega . The power factor of the circuit will be

A circuit has a resistance of 12Omega and an impedance of 15Omega . The power factor of the circuit will be

An alternating supply of 220 V is applied across a circuit with resistance 22 Omega and impedance 44 Omega . The power dissipated in the circuit is

A series AC circuit has a resistance of 4 Omega and a reactance of 3 Omega . The impedance of the circuit is

An alternating power supply of 220 V is applied across a series circuit of resistance 10sqrt(3)Omega, capacitive reactance 40 Omega and inductive reactance 30 Omega The respective current in the circuit in the circuit for zero and infinite frequencies are

An alternating e.m.f. of 0.1 V is applied across an LCR series circuit having R = 2 Omega, C = 40 mu F and L = 100 mH . At resonance, the voltage drop across the inductor is

A2Z-ALTERNATING CURRENT-Power In Ac Circuits
  1. Current in the circuit is wattless, if

    Text Solution

    |

  2. In an AC circuit, V and I are given by V=100sin(100t)"volts", I=100sin...

    Text Solution

    |

  3. A sinusoidal alternating current of peak value (I0) passes through a h...

    Text Solution

    |

  4. In an a.c. Circuit the voltage applied is E=E(0) sin (omega)t. The res...

    Text Solution

    |

  5. In an AC circuit, the instantaneous values of e.m.f and current are e...

    Text Solution

    |

  6. In an AC circuit, the current is given by i=5sin(100t-(pi)/2) and the ...

    Text Solution

    |

  7. What is the r.m.s. value of an alternating current which when passed t...

    Text Solution

    |

  8. In an AC circuit with voltage V and current I, the power dissipated is

    Text Solution

    |

  9. For an AC circuit V=15sin omegat and I=20cos omegat the average power ...

    Text Solution

    |

  10. An alternating e.m.f. of angular frequency omega is applied across an ...

    Text Solution

    |

  11. The power factor of a good choke coil is

    Text Solution

    |

  12. For wattless power is an AC circuit, the phase angle between the curre...

    Text Solution

    |

  13. The r.m.s current in an AC circuit is 2A. If the wattless current be s...

    Text Solution

    |

  14. In an LR-circuit, the inductive reactance is equal to the resistance R...

    Text Solution

    |

  15. An L-C-R series circuit with 100Omega resistance is connected to an AC...

    Text Solution

    |

  16. An rms voltage of 110 V is applied across a series circuit having a re...

    Text Solution

    |

  17. 2.5/(pi) muF capacitor and 3000-ohm resistance are joined in series t...

    Text Solution

    |

  18. The self-inductance of a choke coil is 10mH. When it is connected with...

    Text Solution

    |

  19. A group of electric lamps having a total power rating of 1000 watt is ...

    Text Solution

    |

  20. In the circuit of fig, the source frequency is omega=2000 rad s^(-1). ...

    Text Solution

    |