Home
Class 12
PHYSICS
A 200 V varialbe frequency a.c. source i...

A 200 V varialbe frequency a.c. source is connected to a series combination the angular `C = 80 mu F` and `R = 40 Omega`. Calculate the angular frequency of the soucre to get maximum current in the cicuit, the current amplitude at resonance and power dissipated in the circuit.

Text Solution

AI Generated Solution

To solve the problem step by step, we will calculate the angular frequency at resonance, the current amplitude at resonance, and the power dissipated in the circuit. ### Given Data: - Voltage (V) = 200 V (RMS) - Inductance (L) = 5 H - Capacitance (C) = 80 μF = 80 × 10^(-6) F - Resistance (R) = 40 Ω ...
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION & ALTERNATING CURRENT

    PRADEEP|Exercise JEE Mains Ad..(Multiple Choice Question)|1 Videos

  • ELECTROMAGNETIC INDUCTION & ALTERNATING CURRENT

    PRADEEP|Exercise Multiple Choice Questions|1 Videos

  • ELECTROMAGNETIC INDUCTION & ALTERNATING CURRENT

    PRADEEP|Exercise Value Based Questions|2 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    PRADEEP|Exercise Exercise|191 Videos

  • ELECTROMAGNETIC WAVES

    PRADEEP|Exercise II Focus multiple choice question|5 Videos

Similar Questions

Explore conceptually related problems

A variable frequency 230 V alternating voltage source is connected across a series combination of L = 5.0 H, C = 80 mu F and R = 40 Omega (i) Calculate the angurla frequency fo the source which drives the circuitin resonance. (ii) Obtain r.m.s. the impedance of the circuit and amplitude of current at resonance frequency (iii) Obtain r.m.s. potential drop across the three elements of the circuit at resonating frequency. (iv) How do you explain the observation that the algerbraic sum of voltages across the three elements obtained is greater than the supplied voltage.

An AC source of rms voltage 220 V and variable frequency is connected across a series combination of 5 H inductance 80 muF capacitance and 40 Omega resistance . Calculate frequency which can drive the circuit to resonance. What will be the impedance of the circuit for this frequency and peak current ?

Fig 14.18 shows a series LCR circuit connected to a variable frequency 200 V source: L=4.0H, C=100 muF and R=40 Omega . (i) Calculate the resonant frequency of the circuit. (ii) Obtain the impedance of the circuit and the amplitude of the current at resonating frequency. (iii) Determine r.m.s. potential drop across L.

An inductor of 200 mH, capacitor of 400 mu F and a resistance of 10 ohm are connected in series to an a.c. source of 50 V of varialbe frequency. Calculate (i) angular frequency at which maximum power dissipation occurs in the circuit and the corresponding value of effective current, and (ii) value of Q factor is the circuit.

A series LCR circuit connected to a variable frequency 230 V source has L = 5.0 H, C = 80 mu F , R = 40 Omega , Fig. (a) Determine the source frequency which drives the circuit in resonance. (b) Obtain the impedance of the circuit and amplitude of current at at resonating frequency. (c ) Determine the r.m.s. potential drops acorss the three elements the circuits. Show that the potential drop acorss the LC combination is zero at the resonating frequecny.

(a) Prove that an ideal capacitor in ac circuit does not dissipate power. (b) An inductor of 200m H, capacitor of 400 mu f and a resistaor of 10 Omega are connected in series to ac source of 50 V of variable frequency. Calculate the (i) angular frquency at which maximum power dissiplation occurs in the circuit and the corresponding value of the effective current, and (iii) value of Q-factor in the circuit.

A resistance R and an inductance L are connected in series in an a.c. circut. If omega is the angular frequency of the source, then the power factor is given by

Figure here, shows a series L-C-R circuit connected to a variable frequency 230 V source. L = 5.0H, C = 80 muF and r = 40 Omega (a) Determine the source frequency which drives the circuit in resonance. (b) Obtain the impedance of the circuit and the amplitude of current at the resonating frequency. (c) Determine the rms potential drops across the three elements of the circuit. show that the potential drop across the L-C combination is zero at the resonating frequency.

PRADEEP-ELECTROMAGNETIC INDUCTION & ALTERNATING CURRENT-Exercise
  1. An L-C-R series circuit with 100Omega resistance is connected to an AC...

    Text Solution

    |

  2. A capacitor and a resistor are connected in series with an a.c. source...

    Text Solution

    |

  3. A 200 V varialbe frequency a.c. source is connected to a series combin...

    Text Solution

    |

  4. An inductor 200 mH, capactior 500 mu F, resistor 10 ohm are connected ...

    Text Solution

    |

  5. A coil having resistance 15 Omega and inductance 10H is connected acr...

    Text Solution

    |

  6. An inductor coil stores 32 J of magnetic field energy and dissiopates ...

    Text Solution

    |

  7. A resistor of resistance 100 Omega is connected to an AC source epsilo...

    Text Solution

    |

  8. A 1.5 mu F capacitor is charged to 57 volt.The charging battery is the...

    Text Solution

    |

  9. An alternating current of 1.5 mA and angular frequency omega = 300 ra...

    Text Solution

    |

  10. A coil of inductance 1.0 H and resistance 100 Omega is connected to a...

    Text Solution

    |

  11. The dielectric strength of air is 3.0 xx 10^6 V/m. A parallel-plate ai...

    Text Solution

    |

  12. A choke of 0.5 H, a capacitor of 15 mu F and resistance of 100 ohm are...

    Text Solution

    |

  13. Calculate the value of inductance, which should be connected in series...

    Text Solution

    |

  14. The peak value of alternating e.m.f. in a generator is given by e(0) =

    Text Solution

    |

  15. The frequency of a.c. generated depend on

    Text Solution

    |

  16. The from factor of an a.c. generator is given by

    Text Solution

    |

  17. State Fleming's left-hand rule.

    Text Solution

    |

  18. What is the role of the split-ring in an electric motor?

    Text Solution

    |

  19. The efficiency of d.c. motor is given by eta =

    Text Solution

    |

  20. A transformer is an electrical device used for

    Text Solution

    |