Home
Class 12
PHYSICS
Define impedance of an AC circuit....

Define impedance of an AC circuit.

Text Solution

Verified by Experts

Impedance of an AC circuit is defined as the ratio of rms value of voltage across the circuit to the rms value of current the circuit.
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

    SUBHASH PUBLICATION|Exercise TWO MARKS QUESTIONS WITH ANSWERS|12 Videos
  • ALTERNATING CURRENT

    SUBHASH PUBLICATION|Exercise THREE MARKS QUESTIONS WITH ANSWERS|11 Videos
  • ANNUAL EXAM QUESTION PAPER -MARCH -2017

    SUBHASH PUBLICATION|Exercise PART -D|12 Videos

Similar Questions

Explore conceptually related problems

Give the expression for the impedance of an LCR circuit and obtain the expression for the resonant frequency. What is the power factor of the resonant circuit?

Write the formula for the impedance of a series LCR circuit.

Obtain an expression for the impedance of a series LCR circuit. (using phasor diagram method).

Figure shows a series LCR circuit connected to a variable frequency 230 V source. L = 5.0 H, C = 80muF, 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 LC combination is zero at the resonating frequency.

A pure resistive circuit element X when connected to an a.c. supply of peak voltage 200V gives a peak current of 5A. A second current element Y when connected to same a.c. supply gives the same value of peak current but the current lags behind by 90^@ . If series combination of X and Y is connected to the same supply, what is the impedance of the circuit.

SUBHASH PUBLICATION-ALTERNATING CURRENT -NUMERICALS WITH SOLUTIONS
  1. Define impedance of an AC circuit.

    Text Solution

    |

  2. A 220 AC voltage source is connected across a pure inductor of inducta...

    Text Solution

    |

  3. A 220 AC voltage source is connected across a pure inductor of inducta...

    Text Solution

    |

  4. A 220 AC voltage source is connected across a pure inductor of inducta...

    Text Solution

    |

  5. If a coil is to have a reactance of 16Omega for a frequency 2 kHz, the...

    Text Solution

    |

  6. A pair of adjacent coils have a mutual inductance of 0.25 H. If the cu...

    Text Solution

    |

  7. A sinusoidal current is represented by the equation I=2sin100pit. Calc...

    Text Solution

    |

  8. A sinusoidal current is represented by the equation I=2sin100pit. Calc...

    Text Solution

    |

  9. A sinusoidal current is represented by the equation I=2sin100pit. Calc...

    Text Solution

    |

  10. A sinusoidal current is represented by the equation I=I(0)sin100pit. C...

    Text Solution

    |

  11. An A.C. Source of 250 V, 50 Hz is connected to a circuit consisting of...

    Text Solution

    |

  12. A coil of resistance 100Omega, an inductor of 0.5 H and a capacitor of...

    Text Solution

    |

  13. In the circuit as show in fgure, find the impedance of the circuit. Wh...

    Text Solution

    |

  14. A 100Omega resistor is connected to a 220 V, 50 Hz ac supply What is...

    Text Solution

    |

  15. A 100Omega resistor is connected to a 220 V, 50 Hz ac supply What is...

    Text Solution

    |

  16. A 44 mH inductor is connected to a 220 V, 50Hz ac supply. Determine th...

    Text Solution

    |

  17. A 60muF capacitor is connected to a 110V, 60Hz, ac supply. Determine t...

    Text Solution

    |

  18. Obtain the resonant frequency omega(r) of a series LCR circuit with L ...

    Text Solution

    |

  19. A charged 30muF capacitor is connected in series to a 27mH inductor. W...

    Text Solution

    |

  20. A series LCR circuit with R=20Omega,L=1.5H,andC=35muF is connected to ...

    Text Solution

    |

  21. A coil of inductance 0.50 H, and resistance 100Omega is connected to a...

    Text Solution

    |