Home
Class 12
PHYSICS
The resonant frequency of a circuit is f...

The resonant frequency of a circuit is f. If the capacitance is made 4 times the initial vlaue, then the resonant frequency will become

A

f/2

B

2f

C

f

D

f/4.

Text Solution

Verified by Experts

The correct Answer is:
1

`f=(1)/(2pisqrtLC)i.e.fprop(1)/(sqrtC)to(1)/(sqrt4)=(1)/(2)time`
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION & ALTERNATING CURRENT

    VMC MODULES ENGLISH|Exercise PRACTICE EXERCISE 1|10 Videos
  • ELECTROMAGNETIC INDUCTION & ALTERNATING CURRENT

    VMC MODULES ENGLISH|Exercise PRACTICE EXERCISE 2|10 Videos
  • ELECTROMAGNETIC INDUCTION & ALTERNATING CURRENT

    VMC MODULES ENGLISH|Exercise IN-CHAPTER EXERCISE-G|10 Videos
  • DYNAMICS OF A PARTICLE

    VMC MODULES ENGLISH|Exercise JEE Advance (Archive) Level - II (SINGLE OPTION CORRECT TYPE )|31 Videos
  • ELECTROMAGNETIC INDUCTION & ALTERNATIVE CURRENT

    VMC MODULES ENGLISH|Exercise IMPECCABLE|52 Videos

Similar Questions

Explore conceptually related problems

The resonant frequency of a circuit is f . If the capacitance is made 4 times the initial values, then the resonant frequecy will become

What is resonance ? What is resonant frequency ?

In a series resonant L-C-R circuit, the capacitance is changed from C to 3C. For the same resonant frequency, the inductance should be changed from L to

The resonant frequency of a series LCR circuit with L=2.0 H,C =32 muF and R=10 Omega is

In the given figure, which voltmeter will read zero voltage at resonant frequency?

To reduce the resonant frequency in an LCR series circuit with a generator

To reduce the resonant frequency in an LCR series circuit with a generator

To reduce the resonant frequency in an LCR series circuit with a generator

In the given figure , a series L-C-R circuit is connected to a variable frequency source of 230 V . The impedance and amplitude of the current at the resonating frequency will be

The figure shows a series LCR circuit with L=10.0 H_(2), C=40 mu F, R=60 Omega connected to a variable frequency 240 V source. Calculate (i) The angular frequency of the source which drives the circuit at resonance. (ii) The current at the resonating frequency. (iii) The rms potential drop across the capacitor at resonance.

VMC MODULES ENGLISH-ELECTROMAGNETIC INDUCTION & ALTERNATING CURRENT-SOLVED EXAMPLES
  1. A metal rod mvoess at a constant velocity in a direction perpendicular...

    Text Solution

    |

  2. A thin semicircular conducting ring of radius R is falling with its pl...

    Text Solution

    |

  3. Two different coils have self-inductance L(1)=8mH,L(2)=2mH. The curren...

    Text Solution

    |

  4. A conducting square loop of side l and resistance R moves in its plane...

    Text Solution

    |

  5. the inductance of a closed-packed coil of 400 turns is 8mH. A current ...

    Text Solution

    |

  6. The current in an L-R circuit builds upto (3)/(4)th of its steady stat...

    Text Solution

    |

  7. The magnetic flux through each turn of a 100 turn coil is (t ^(3)– 2t)...

    Text Solution

    |

  8. Two coils of self inductance L(1) and L(2) are connected in parallel a...

    Text Solution

    |

  9. The magnetic flux through a coil varies with time as phi=5t^2+6t+9 Th...

    Text Solution

    |

  10. An airplane with a 20 wingspread is flying at 250m/s straight south pa...

    Text Solution

    |

  11. A wire in the form of a circular loop of radius 10 cm lies in a plane ...

    Text Solution

    |

  12. A coil of resistance 200 ohms and self inductance 1.0 henry has been c...

    Text Solution

    |

  13. In an AC circuit , the potential difference V and current I are given ...

    Text Solution

    |

  14. The resonant frequency of a circuit is f. If the capacitance is made 4...

    Text Solution

    |

  15. A resistor and an inductor are connected to an ac supply of 120 V and ...

    Text Solution

    |

  16. In an ac circuit , L = (0.4)/(pi) H and R = 30 Omega. If the circuit h...

    Text Solution

    |

  17. In the circuit shown in figure, what will be the readings of voltmeter...

    Text Solution

    |

  18. In an AC circuit the maximum value of voltage is 423 volt, Its effecti...

    Text Solution

    |

  19. In a transformer,n(p) = 500,n(s) = 5000 Input voltage is 20 V and freq...

    Text Solution

    |

  20. The potential difference V and the current I flowing through an ins...

    Text Solution

    |