Home
Class 12
PHYSICS
A series circuit with L = 0.12H, C = 0.4...

A series circuit with L = 0.12H, C = 0.48 mF and R = 25 ohm, is connected to a 220V variable frequency power supply. At what frequency is the circuit current maximum ?

Promotional Banner

Topper's Solved these Questions

  • Capacitance

    PUNJAB BOARD PREVIOUS YEAR PAPERS|Exercise Exercise|132 Videos

Similar Questions

Explore conceptually related problems

A series LCR circuit with L=0.12H, C = 480 nF, R= 23 Omega is connected to a 230 V variable frequency supply. What is the Q-factor of the given circuit?

A series LCR circuit with L=0.12H, C = 480 nF, R= 23 Omega is connected to a 230 V variable frequency supply. What is the source frequency for which current amplitude is maximum. Obtain this maximum value.

A series LCR circuit with L=0.12H, C = 480 nF, R= 23 Omega is connected to a 230 V variable frequency supply. For which frequencies of the source is the power transferred to the circuit half the power at resonant frequency? What is the current amplitude at these frequencies?

A series LCR-circuit having L = 10 mH, C = (400//pi^2)muF and R = 55 ohm is connected to a 220 V variable frequency a.c. supply. Find the frequecy of the source, for which the average power absorbed by the circuit is maximum.

A series LCR-circuit having L = 10 mH, C = (400//pi^2)muF and R = 55 ohm is connected to a 220 V variable frequency a.c. supply. Calculate the value of maximum current amplitude.

A series LCR circuit with L=0.12H, C = 480 nF, R= 23 Omega is connected to a 230 V variable frequency supply. What is the source frequency for which average power absorbed by the circuit is maximum. Obtain the value of this maximum power.

A series LCR circuit with R= 20 Omega ,L=1.5H and C = 35 muF is connected to a variable-frequency 200 V ac supply. When the frequency of the supply equals the natural frequency of the circuit, what is the average power transferred to the circuit in one complete cycle?

PUNJAB BOARD PREVIOUS YEAR PAPERS-ALTERNATING CURRENTS-EXERSICE
  1. A 230 V variable frequency source is connected across a series combina...

    Text Solution

    |

  2. A 230 V variable frequency source is connected across a series combina...

    Text Solution

    |

  3. A series circuit with L = 0.12H, C = 0.48 mF and R = 25 ohm, is connec...

    Text Solution

    |

  4. A capacitor of unknown value and an inductor of 0.1H and a resistor of...

    Text Solution

    |

  5. A 60muF capacitor, a 0.3H inductor and a 50Omega resistor are connecte...

    Text Solution

    |

  6. A series LCR circuit with R = 20Omega (Ohm), L = 1,5H (Henry) and C= 3...

    Text Solution

    |

  7. What is the relation between peak value and root mean square value of ...

    Text Solution

    |

  8. What is the phase relationship between current and voltage in an induc...

    Text Solution

    |

  9. What do you mean by power factor of an a.c. circuit ?

    Text Solution

    |

  10. Define inductive reactance of an inductor.

    Text Solution

    |

  11. What is Wattless current ?

    Text Solution

    |

  12. Define capacitive reactance of a capacitor.

    Text Solution

    |

  13. What is an idle current ?

    Text Solution

    |

  14. Define impedance of an a.c. circuit.

    Text Solution

    |

  15. What is the impedance of a circuit ?

    Text Solution

    |

  16. What is impedance of circuit at resonance ?

    Text Solution

    |

  17. For a circuit at resonance, voltage applied is E = E@ sin wt and curre...

    Text Solution

    |

  18. For a circuit at resonance, voltage applied is E = E@ sin wt and curre...

    Text Solution

    |

  19. Define resonant frequency of LCR series circuit.

    Text Solution

    |

  20. Which is more dangerous in use :a.c or d.c. ? Explain, why

    Text Solution

    |