RLC circuit with two angular frequencies

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SUMMARY

The discussion focuses on an RLC circuit consisting of a resistor, an inductor with an inductance of 0.02H, and a capacitor connected in series. An alternating voltage of 200sin(1000t-10°) is applied, resulting in a current of 20√2sin(2000t-20°). The key issue raised is the discrepancy in angular frequencies between the voltage and current, which complicates the calculation of impedance using phasors. The consensus is that for linear circuits, all voltages and currents must share the same frequency at steady-state.

PREREQUISITES
  • Understanding of RLC circuit components (resistor, inductor, capacitor)
  • Knowledge of angular frequency and its application in AC circuits
  • Familiarity with reactance calculations for inductors and capacitors
  • Basic principles of phasor analysis in electrical engineering
NEXT STEPS
  • Study the principles of impedance in RLC circuits
  • Learn about phasor representation of AC voltages and currents
  • Explore the concept of resonance in RLC circuits
  • Investigate the effects of non-linear components on circuit behavior
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Electrical engineering students, circuit designers, and anyone interested in analyzing RLC circuits and their behavior under alternating current conditions.

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A resistor, an inductor of inductance value of 0.02H and a capacitor are connected in series. When an alternating voltage of 200sin(1000t-10°) is applied to the series combination, the current flowing through the circuit is 20√2sin(2000t-20°). Determine the values of resistor and capacitor.

Reactance of inductor= wL
Reactance of capacitor= 1/wC

I don't know how to attempt this question. The voltage and current have different angular frequencies so how do we calculate the impedance using phasors or with some other method?
 
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Hello cool_stuff_lol, Welcome to Physics Forums.

In future, please retain and use the formatting template provided when you start a new thread in the Homework sections. Failure to do so may result in infraction points being awarded.

cool_stuff_lol said:
A resistor, an inductor of inductance value of 0.02H and a capacitor are connected in series. When an alternating voltage of 200sin(1000t-10°) is applied to the series combination, the current flowing through the circuit is 20√2sin(2000t-20°). Determine the values of resistor and capacitor.

Reactance of inductor= wL
Reactance of capacitor= 1/wC

I don't know how to attempt this question. The voltage and current have different angular frequencies so how do we calculate the impedance using phasors or with some other method?

This looks like a typo in the question statement. There are no non-linear components in the described circuit which could result in frequency harmonics being generated.

For linear circuits, all currents and voltages must have the same frequency at steady-state when all sources have the same frequency (here "all" is one: the voltage source).
 

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