Home
Class 12
PHYSICS
A series LCR circuit containing a resist...

A series LCR circuit containing a resistance of 120 ohm has angular resonance frequency `4 xx 10^(3)rad s^(-1)`. At resonance, the voltage across resistance and inductance are 60V and 40 V respectively. The values of Land C are respectively

A

`20 mH,25//8 muF`

B

`2 mH,1//35 muF`

C

`20 mH,1//40 muF`

D

`2 mH,25//8 muF`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

    RESONANCE|Exercise Exercise -2 Part-1|14 Videos

  • ALTERNATING CURRENT

    RESONANCE|Exercise Exercise -2 Part-2|6 Videos

  • ALTERNATING CURRENT

    RESONANCE|Exercise Problem|14 Videos

  • ATOMIC PHYSICS

    RESONANCE|Exercise Advanved level problems|17 Videos

Similar Questions

Explore conceptually related problems

An LCR series circuit containing a resistance of 12 Omega has angular resonance frequency 4 xx 10^(5) "rad" S^(-1) . At resonance the voltage across resistance and inductance are 60 V and 40 V respectively. Then the values of L and C are respectively.

A series LCR circuit containing a resistance of 120 Omega has angular resonance frequency 4 xx 10^(5) "rads"^(-1) . At resonance the voltages across resistance and inductance are 60 V and 40 V respectively. (a) The value of L and C are 0.2 mH, 1/32 muF (b) If angular frequency is changed to 8xx10^(5) "rad"//s , the current lags the voltage by 45^(@) (c) If angular frequency is charged to 6xx10^(5) "rad"//s , the current lags the voltage by 45^(@)

A series LCR circuit containing a resistance of 120 Omega has angular resonance frequency 4 xx 10^(5) rad s^(-1) . At resonance the vlotage across resistance and inductance are 60V and 40 V, repectively, the value of inductance L is

A series LCR circuit containing a resistance of 120 Omega has angular resonance frequency 4 xx 10^(5) rad s^(-1) . At resonance the vlotage across resistance and inductance are 60V and 40 V, repectively, The value of capacitance C is

An LCR series circuit containing resistance of 20omega has angular resonat frequency 4 xx 10^(5)ms^(-1) At resonance the voltage across resistance and inductance are 600V and 40V respectively The values of L and C are .

A series LCR- circuit containing a resistance of 120 Omega has angular resonance frequency 4 xx10^(5) rads^(-1) . At resonance the voltages across resistance and inductance are 60 V and 40 V respectively. Find the values of L and C. At what frequency the current in the circuit lags the voltage by 45^(@) ?

A series LCR circuit containing a resistance of 120 Omega has angular resonance frequency 4 xx 10^(5) rad s^(-1) . At resonance the vlotage across resistance and inductance are 60V and 40 V, repectively, At what frequency, the current in the circuit lags the voltage bu 45^(@) ?

A series L-C-R circuit containing a resistance of 120Omega has resonance frequency 4xx10^5rad//s . At resonance the voltages across resistance and inductance are 60V and 40V , respectively. Find the values of L and C .At what angular frequency the current in the circuit lags the voltage by pi//4 ?

In series LCR circuit R=120 Omega and it has resonant frequency 4000 rad//sec . At resonance, the voltage across resistance and inductance is 60 V and 40 V respectively. Find the value of L and C in circuit.

In an LCR series circuit the voltages across R,L and C at resonance are 40 V and 60V respectively the applied voltage is .

RESONANCE-ALTERNATING CURRENT-Exercise -1 Part-1
  1. An alternating voltage E=200sqrt(2)sin(100t) is connected to a 1 micro...

    Text Solution

    |

  2. When 100 V DC is applied across a solenoid, a steady current of 1 A fl...

    Text Solution

    |

  3. In an LCR series ac circuit the voltage across L,C and R are V(1), V(2...

    Text Solution

    |

  4. In the series L-C-R circuit , the voltmeter and ammeter readings are

    Text Solution

    |

  5. In a series LCR circuit, at resonance, power factor is …….. .

    Text Solution

    |

  6. A series LCR circuit containing a resistance of 120 ohm has angular re...

    Text Solution

    |

  7. In an LCR circuit, the capacitance is made one-fourth, when in resonan...

    Text Solution

    |

  8. A resistor R,an inductor L, and a capacitor C are connected in series ...

    Text Solution

    |

  9. A resistor R, an inductor L, a capacitor C and voltmeters V(1),V(2) an...

    Text Solution

    |

  10. A power transformer (step up) with an 1:8 turns ratio has 60 Hz,120 V ...

    Text Solution

    |

  11. A transformer is used to light a 140 W, 24 V lamp from 240 V AC mains....

    Text Solution

    |

  12. In a step-up transformer the voltage in the primary is 220 V and the c...

    Text Solution

    |

  13. The core of a transformer is laminated to reduce

    Text Solution

    |

  14. A capacitor becomes a perfect insulator for

    Text Solution

    |

  15. A choke coil has.

    Text Solution

    |

  16. A choke coil is preferred to a rheostate in AC circuit as

    Text Solution

    |

  17. With increase in frequency of an AC supply, the inductive reactance:

    Text Solution

    |

  18. With increase in frequency of an AC supply, the capacitive reactance:

    Text Solution

    |

  19. An ac ammeter is used to measure currnet in a circuit. When a given di...

    Text Solution

    |

  20. In an a.c. circuit consisting of resistance R and inductance L, the vo...

    Text Solution

    |