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Draw the phasor diagram for a series LRC circuit connected to an AC source. - Physics

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प्रश्न

Draw the phasor diagram for a series LRC circuit connected to an AC source.

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संबंधित प्रश्‍न

Define 'quality factor' of resonance in a series LCR circuit. What is its SI unit?


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The phase difference between the current and the voltage in series LCR circuit at resonance is


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  1. Determine the source frequency which drives the circuit in resonance.
  2. Obtain the impedance of the circuit and the amplitude of current at the resonating frequency.
  3. 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.

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Which of the following combinations should be selected for better tuning of an LCR circuit used for communication?


When an alternating voltage of 220V is applied across device X, a current of 0.25A flows which lags behind the applied voltage in phase by π/2 radian. If the same voltage is applied across another device Y, the same current flows but now it is in phase with the applied voltage.

  1. Name the devices X and Y.
  2. Calculate the current flowing in the circuit when the same voltage is applied across the series combination of X and Y.

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