AC Circuit with Dependent Voltage and Current Sources

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Discussion Overview

The discussion revolves around solving an AC circuit problem involving dependent voltage and current sources. Participants explore various methods for analysis, including nodal analysis and Kirchhoff's Voltage Law (KVL), while addressing specific parts of the problem sequentially.

Discussion Character

  • Homework-related
  • Mathematical reasoning
  • Technical explanation

Main Points Raised

  • One participant suggests starting with nodal analysis on a specific loop to approach the problem.
  • Another participant proposes applying KVL to derive a relationship between Vx and Ix for part (a).
  • A different participant indicates that for the second part, calculating the current across the series impedance of a resistor and inductor is necessary to express Vx in terms of Ix, leading to simultaneous equations for solving both variables.
  • One participant expresses gratitude after completing the first part and indicates readiness to proceed to the second part.
  • Another participant mentions difficulty with part (g) of the problem.
  • A participant explains that apparent power is the modulus of real and reactive power and emphasizes the importance of showing that total power delivered equals total power absorbed in the circuit, along with rules for determining power delivery or absorption.

Areas of Agreement / Disagreement

Participants generally agree on the methods to approach the problem, but there are unresolved aspects, particularly regarding part (g) and the specific calculations involved.

Contextual Notes

Some assumptions regarding circuit parameters and definitions of power may not be explicitly stated, and there are unresolved mathematical steps in the discussion.

Who May Find This Useful

Students or individuals working on AC circuit analysis, particularly those dealing with dependent sources and power calculations.

blackhawk93
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Warning! Posting template must be used for homework questions, some work must be shown.
I have trouble solving the following problem. Am I supposed to start by doing nodal analysis on the loop on the right. Can someone give me a start. Thanks...
Q2.png
 
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For part (a) you can apply KVL to loop 1 and thus can get a relation between Vx and Ix.
 
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For second part hint is that you need to calculate current across series impedance of resistor and inductor, by doing so you can calculate Vx in terrms of Ix. Now you have two relations of Vx and Ix , solve simultaneous equations and get the values of Vx and Ix.
 
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Thank y
lazyaditya said:
For second part hint is that you need to calculate current across series impedance of resistor and inductor, by doing so you can calculate Vx in terrms of Ix. Now you have two relations of Vx and Ix , solve simultaneous equations and get the values of Vx and Ix.
lazyaditya said:
For part (a) you can apply KVL to loop 1 and thus can get a relation between Vx and Ix.
Thank you so much.. I did the first part now moving on to the 2nd part.
 
Cant figure out part (g)
 
Apparent power is the modulus of the real power and reactive power, total power delivered in circuit must always be equal to total power absorbed which you have to show. The rule to be considered to see when power is delivered or absorbed are:-
1. When current enters positive terminal of voltage drop or voltage source power is absorbed.
2. When current leaves a positive terminal of voltage power is delivered.
 

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