AC circuit analysis involving resistors and inductors

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SUMMARY

This discussion focuses on AC circuit analysis involving resistors, inductors, and capacitors. Participants emphasize the importance of converting inductance (L) and capacitance (C) into reactance using the formulas XL = ω⋅L and XC = -1 / (ω⋅C), where ω = 2⋅π⋅f. The conversation also highlights the necessity of transforming admittance (Y) to delta configuration to eliminate floating nodes and facilitate current calculations. Participants recommend organizing circuit components for clarity and converting voltages to complex numbers for accurate analysis.

PREREQUISITES
  • Understanding of AC circuit components: resistors, inductors, and capacitors
  • Familiarity with complex numbers and their application in electrical engineering
  • Knowledge of reactance calculations for inductors and capacitors
  • Basic principles of circuit transformations, specifically Y-Δ transformation
NEXT STEPS
  • Study the process of converting inductance and capacitance to reactance in AC circuits
  • Learn about the Y-Δ transformation and its applications in circuit analysis
  • Explore the use of complex numbers in electrical engineering, particularly in AC analysis
  • Investigate methods for calculating currents in AC circuits using impedance
USEFUL FOR

Electrical engineering students, circuit designers, and professionals involved in AC circuit analysis and optimization.

Franklie001
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Poster has been reminded (again) to show their work on schoolwork problems
Summary:: Hi anyone can explain me how to solve this circuit, finding the current I2 and I1?
Really don't know where to start Thanks

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Is this school work?
Make it easier to recognise the circuit by first migrating C1 to be next to R1. Then C2 to be next to L2. Make the base line ground.

Convert L and C to reactance. Then write the three impedances composed of series R, L & C as complex numbers, Z = R + Xj .

Transform Y to delta. https://en.wikipedia.org/wiki/Y-Δ_transform
Now there are no floating nodes.
You have voltage and phase, convert them to complex.
Work out the currents from there.
 
Hi thanks for your help, yes it's a coursework from uni
How do i convert the L and C to reactance by the way?

Should i have to convert also the voltages as complex number too?

Thank you
 
Franklie001 said:
How do i convert the L and C to reactance by the way?
XL = ω⋅L
XC = -1 / ω⋅C
ω=2⋅π⋅f
 

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