- LCR Series Circuit
- Phasor-diagram solution
- Analytical solution
- Resonance - Sharpness of resonance
- Alternating Current L.C.R. Series circuit
undefined video tutorial00:41:43
- Alternating current part 14 (Impedance in LCR circuit)
undefined video tutorial00:04:01
- Alternating current part 31 (Numericals)
undefined video tutorial00:12:02
- Alternating current part 13 (Series LCR circuit)
undefined video tutorial00:05:38
- Alternating current part 16 (Phasor diagram Series LCR circuit)
undefined video tutorial00:14:10
- Alternating current part 15 (AC voltage to LCR circuit series)
undefined video tutorial00:14:29
(i) Find the value of the phase difference between the current and the voltage in the series LCR circuit shown below. Which one leads in phase : current or voltage ?
(ii) Without making any other change, find the value of the additional capacitor C1, to be connected in parallel with the capacitor C, in order to make the power factor of the circuit unity.
A series LCR circuit is connected across an a.c. source of variable angular frequency 'ω'. Plot a graph showing variation of current 'i' as a function of 'ω' for two resistances R1 and R2 (R1 > R2).
Answer the following questions using this graph :
(a) In which case is the resonance sharper and why?
(b) In which case in the power dissipation more and why?
In a series LCR circuit connected to an a.c. source of voltage v = vmsinωt, use phasor diagram to derive an expression for the current in the circuit. Hence, obtain the expression for the power dissipated in the circuit. Show that power dissipated at resonance is maximum
Why does current in a steady state not flow in a capacitor connected across a battery? However momentary current does flow during charging or discharging of the capacitor. Explain.