Home
Class 12
PHYSICS
A charged capacitor discharges through a...

A charged capacitor discharges through a resistance `R` with time constant `tau`. The two are now placed in series across an `AC` source of angular frequency `omega =1/(tau)` . The impedance of the circuit will be

A

`R/(sqrt(2))`

B

`R`

C

`sqrt(2R)`

D

`2R`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • ELECTRIC CURRENT IN CONDUCTORS

    D MUKHERJEE|Exercise All Questions|79 Videos
  • ELECTROSTATICS

    D MUKHERJEE|Exercise All Questions|102 Videos

Similar Questions

Explore conceptually related problems

For an LCR series circuit with an aac source of angular frequency omega .

When a capacitor discharges through a resistance R, the time constant is tau and the maximum current in the circuit is i_0 . Then,

An inductance L and capacitance C and resistance R are connected in series across an AC source of angular frequency omega . If omega^(2)gt (1)/(LC) then

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

In a series LCR circuit, operated with an ac of angular frequency omega , the total impedance is

Power delivered by an ac source of angular frequency Omega_(0) to an LCR series circuit is maximum when .

A charged capacitor of capacitance 40 muF is discharged through a 50Omega resistance. Determine the time constant of the circuit.

A charged capacitor is discharged through a resistance. The time constant of the circuit is eta . Then the value of time constant for the power dissipated through the resistance will be

A capacitor charges from a cell through a resistance. The time constant is tau . In what time will the capacitor collect 10% of the final charge?

D MUKHERJEE-ELECTROMAGNETISM-All Questions
  1. A coil of self-inductance L is placed in an external magnetic field (n...

    Text Solution

    |

  2. When a charged capacitor is made to discharge through an inductance, t...

    Text Solution

    |

  3. A charged capacitor discharges through a resistance R with time consta...

    Text Solution

    |

  4. An electric lamp designed for operation on 10V AC is connected to a 22...

    Text Solution

    |

  5. A resistance R draws power P when connected to an AC source. If an ind...

    Text Solution

    |

  6. An inductor and a capacitor are joined in series to an AC source. The ...

    Text Solution

    |

  7. A resistance R and a capacitor C are joined to a source of AC of consa...

    Text Solution

    |

  8. An inductance L, a cpacitance C and a resistance R may be connected to...

    Text Solution

    |

  9. An electrical heater and a capacitor are joined in series across a 220...

    Text Solution

    |

  10. In an AC circuit, the reactannce is equal to the resistance. The power...

    Text Solution

    |

  11. An observer A and a charge Q are fixed in a stationary frame F(1). An...

    Text Solution

    |

  12. A long straight wire carries the current along +ve x-direction. Consid...

    Text Solution

    |

  13. Two long parallel wires, AB and CD, carry equal currents in opposite d...

    Text Solution

    |

  14. A straight conductor carries a current. Assume that all free electrons...

    Text Solution

    |

  15. A straight conductor carriers a current alon the z-axis Consider the p...

    Text Solution

    |

  16. L is a circular ring made of a uniform wire, currents enters and leave...

    Text Solution

    |

  17. L is a circular loop (in y-z plane) carrying an anticlockwise current....

    Text Solution

    |

  18. In the loops shown in fig. all curved section are either semicircles o...

    Text Solution

    |

  19. A long straight conductor carrying a current i is bent to form an almo...

    Text Solution

    |

  20. A flat circular coil, carrying a current, has a magnetic moment mu

    Text Solution

    |