Home
Class 12
PHYSICS
For an LCR series circuit with an aac so...

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

A

circuit will be capactive if `omega gt (1)/(sqrt(LC))`

B

circuit will be inductive if `omega = (1)/(sqrt(LC))`

C

power factor of circuit will be unity of capacitive reactance equal inductive reactance

D

current will be leading voltage if `omega gt (1)/(sqrt(LC))`

Text Solution

Verified by Experts

The correct Answer is:
3
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

    NARAYNA|Exercise Assertion & Reason|14 Videos

  • ALTERNATING CURRENT

    NARAYNA|Exercise LEVEL - I (C.W)|23 Videos

  • ALTERNATING CURRENT

    NARAYNA|Exercise LEVEL - II(H.W)|13 Videos

  • ATOMIC PHYSICS

    NARAYNA|Exercise LEVEL-II (H.W)|14 Videos

Similar Questions

Explore conceptually related problems

For an LCR sereis circuit with an angular freequency omega .

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

In an LCR series circuit the current is

In R-L-C series circuit, we have same current at angular frequencies omega_(1) and omega_(2) . The resonant frequency of circuit is

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

There is a series LCR circuit connected to an AC source of angular frequency 3xx10^(5) rad/s . It is found that circuit is in resonance mode at this frequency and voltages across resistor and inductor are found to be 80 V and 60 V respectively . Calculate L and C . Resistance used in the circuit is 160 Omega .

What is the power factor of an LCR circuit connected to an AC source of angular frequency (1)/(sqrt(LC)) ?

Resistor of resistance R and capacitor of capacitance C are connected in series to an AC source of angular frequency omega . Rms current in the circuit is I. When frequency of the source is changed to one - third of initial value keeping the voltage same then current is found to be halved. Find the ratio of reactance of capacitor to that with resistance at the original frequency omega .

NARAYNA-ALTERNATING CURRENT-C.U.Q
  1. A transformer changes the voltage

    Text Solution

    |

  2. A step up transformer is connected on the primary side to a rechargabl...

    Text Solution

    |

  3. The ratio of primary voltage to secondary voltage in a transformer is ...

    Text Solution

    |

  4. In a step down transformer, the number of turns in the primary is alwa...

    Text Solution

    |

  5. The transformer ratio of a step up transformer is

    Text Solution

    |

  6. A setup transformer develops 440 V in secondary coil for an input of 2...

    Text Solution

    |

  7. Assertion (A) : If changing current is flowing through a machine with ...

    Text Solution

    |

  8. Transformers are used

    Text Solution

    |

  9. The magnitude of the e.m.f. across the secondary of a transformer does...

    Text Solution

    |

  10. For an ideal transformer ratio of output ot the input power is always

    Text Solution

    |

  11. Consider the following two statements A and B and identify the correct...

    Text Solution

    |

  12. Statement (A) : Flux leakage in a transformer can be minimized by wind...

    Text Solution

    |

  13. Statement (A) : In high current low voltage windings of a transformer ...

    Text Solution

    |

  14. Statement (A) : Step up transformer converts low voltage, high current...

    Text Solution

    |

  15. To reduce the iron losses in a transformer, the core must be made of a...

    Text Solution

    |

  16. Maximum efficiency of a transformer depends on

    Text Solution

    |

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

    Text Solution

    |

  18. The value of current in tow series LCR circuits at resonance is same, ...

    Text Solution

    |

  19. When an ac source of emfe=E(0) sin (100 t) is connected across a circu...

    Text Solution

    |

  20. An AC voltage source of variable angular frequency (omega) and fixed a...

    Text Solution

    |