Home
Class 12
PHYSICS
Time constant of the given circuit is ta...

Time constant of the given circuit is `tau` If the battery is replaced by an ac source having voltage `V = V_0cosomegat` , power factor or the circuit will be

A

`omegaT`

B

`1/(sqrt(1+(omegatau)^2))`

C

`sqrt(1-(omegatau)^2)`

D

None

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • NTA NEET TEST 101

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos
  • NTA NEET TEST 103

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

Power in both the given circuit are same then find angular frequency of AC source

In an AC circuit, the power factor

In an AC circuit, the reactannce is equal to the resistance. The power factor of the circuit will be

A generator of 100 V (rms) is connected in an ac circuit and 1 A (rms) current is flowing in the circuit. If the phase difference between the voltage and the current is pi//3 . then the average power consumption and the power factor of the circuit will be –

A circuit consisting of a capacitor with capacitance C and a resistance R connected in series was connected at the moment t=0 to a source of ac voltage V=V_(m) cos omegat . Find the current in the circuit as a function of time t .

In an electrical circuit R,L, C and a.c voltage source are all connected in series. When L is removed from the circuit , the phase difference between the voltage and current in the circuit is π/6. If instead ,C is removed from the circuit , the phase difference is again π/6 . The power factor of the circuit is

In a LR circuit, the AC source has voltage 220V and potential difference across the resistor is 176V .The power factor of the circuit is

The power factor of an L-R series circuit is 0.5 and that of a C-R series circuit is 0.2. If the elements (L, C and R) of the two circuit are joined in series and connected to the same ac source, the power factor of this circuit is found to be 1. The ratio of the resistance in the L-R circuit to the resistance in the C-R circuit is

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

NTA MOCK TESTS-NTA NEET TEST 102-PHYSICS
  1. Two wires that are made up of two different materials whose specific r...

    Text Solution

    |

  2. Eight resistances each of resistance 5 Omega are connected in the circ...

    Text Solution

    |

  3. Time constant of the given circuit is tau If the battery is replaced ...

    Text Solution

    |

  4. An ideal transformer converts 220 V AC to 3.3 kV AC to transmit a powe...

    Text Solution

    |

  5. In the given figure a capacitor of plate area A is charged up to char...

    Text Solution

    |

  6. A charge Q is uniformly distributed over the surface of two conducting...

    Text Solution

    |

  7. A satellite which is geostationary in a particular orbit is taken to a...

    Text Solution

    |

  8. If g is the acceleration due to gravity on earth's surface, the gain o...

    Text Solution

    |

  9. A monatomic gas initially at 17^@ C has suddenly compressed adiabatic...

    Text Solution

    |

  10. Five moles of hydrogen gas are heated from 30^(@)C to 60^(@)C at const...

    Text Solution

    |

  11. A cylindrical vessel made of thermally insulating material is divided ...

    Text Solution

    |

  12. A current carrying circular coil is bent so as to convert it into a do...

    Text Solution

    |

  13. A current I is flowing in a conductor shaped as shown in figure. The r...

    Text Solution

    |

  14. A car is moving along a straight road with a uniform acceleration. It ...

    Text Solution

    |

  15. The x and y coordinates of a particle at any time t are given by x = 2...

    Text Solution

    |

  16. The force required to move a body up a rough inclined plane is double ...

    Text Solution

    |

  17. A man weighing 80 kg is standing on a trolley weighting 320 kg. The tr...

    Text Solution

    |

  18. Starting with a sample of pure .^(66)Cu, 7//8 of it decays into Zn in ...

    Text Solution

    |

  19. Activity of a radioactive sample decreases to (1/3)rd of its original ...

    Text Solution

    |

  20. A simple spring has length l and force constant K. It is cut into two ...

    Text Solution

    |