Home
Class 12
PHYSICS
An AC voltage source of variable angular...

An `AC` voltage source of variable angular frequency `omega` and fixed amplitude `V_(0)` is connected in series with a capacitance `C` and an electric bulb of resistance `R` (inductance Zero). When `omega` is increase.

A

The bulb glows dimmer.

B

The bulb glows brighter.

C

Net impedance of the circuit remains unchanged.

D

Total impedance of the circuit increases.

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • SAMPLE PAPER 2022

    CBSE MODEL PAPER|Exercise SECTION C|6 Videos
  • SAMPLE PAPER 2022

    CBSE MODEL PAPER|Exercise SECTION C|6 Videos
  • Additional Practice Questions

    CBSE MODEL PAPER|Exercise Question|1 Videos
  • SAMPLE PAPER 2022 TERM II

    CBSE MODEL PAPER|Exercise SECTION B|16 Videos

Similar Questions

Explore conceptually related problems

The power factor of an AC circuit having resistance (R) and inductance (L) connected in series and an angular velocity omega is

A box P and a coil Q are connected in series with an AC source of variable frequency. The emf of the source is constant at 10 V . Box P contains a capacitance of 1 mu F in series with a resistance of 32 Omega . Coil Q has a self-inductance 4.9 mH and a resistance of 68 Omega in series. The frequency is adjusted to that the maximum current flows in P and Q . At this frequency (a) The impedance of P is 77 Omega (b) The impedance of Q is 85 Omega (c ) Voltage across P is 7.7 V (d) Voltage across Q is 9.7 V

A box P and a coil Q are connected in series with an AC source of variable frequency.The EMF of source is constant at 10 V .Box P contains a capacitance of 1 muF in series with a resistance of 32 Omega .Coil Q has a self inductance 4.9 mH and a resistance of 68 Omega .The frequency is adjusted so that the maximum current flows in P and Q .Find the impedance of P and Q at this frequency.Also find the voltage across P and Q respectively.

A series LCR circuit having resistance R, capacitance C and inductance L has a voltage source of angular frequency omega and voltage V_(in). Output voltage (V_(out)) is taken as voltage across the resistor and inductor combined. (a) Find eta=(V_(out))/V_("in") (b) Find eta in the limit of large omega(omegagtgt(1)/(RC),(1)/(sqrt(LC)),(R)/(L)) (C )Find eta in the limit of small omega(omegagtgt(1)/(RC),(1)/(sqrt(LC)),(R)/(L))

CBSE MODEL PAPER-SAMPLE PAPER 2022-SECTION B
  1. Two parallel plate capacitors X and Y, have the same area of plates ...

    Text Solution

    |

  2. Which among the following, is not a cause for power loss in a transfo...

    Text Solution

    |

  3. An AC voltage source of variable angular frequency omega and fixed amp...

    Text Solution

    |

  4. A solid spherical conductor has charge +Q and radius R. It is surround...

    Text Solution

    |

  5. A Steady current flows in a metalic conductor of non uniform cross sec...

    Text Solution

    |

  6. Three resistors having values R1,R2 and R3 are connected in series to ...

    Text Solution

    |

  7. A straight line plot showing the terminal potential difference (V) of ...

    Text Solution

    |

  8. A 10 m long wire of uniform cross section and 20 Omega resistance is u...

    Text Solution

    |

  9. The current sensitivity of a galvanometer increases by 20%. If its re...

    Text Solution

    |

  10. Three infinitely long parallel straight current carrying wires A, B an...

    Text Solution

    |

  11. In a hydrogen atom the electron moves in an orbit of radius 0.5 Ao ...

    Text Solution

    |

  12. An air-cored solenoid with length 30 cm, area of cross-section 25 cm2 ...

    Text Solution

    |

  13. A sinusoidal voltage of peak value 283 V and frequency 50 Hz is applie...

    Text Solution

    |

  14. A circular loop of radius 0.3 cm lies parallel to amuch bigger circula...

    Text Solution

    |

  15. If both the number of turns and core length of an inductor is doubled ...

    Text Solution

    |

  16. Given below are two statements labelled as Assertion (A) and Reason (R...

    Text Solution

    |

  17. Given below are two statements labelled as Assertion (A) and Reason (R...

    Text Solution

    |

  18. Given below are two statements labelled as Assertion (A) and Reason (R...

    Text Solution

    |

  19. Given below are two statements labelled as Assertion (A) and Reason (R...

    Text Solution

    |

  20. Given below are two statements labelled as Assertion (A) and Reason (R...

    Text Solution

    |