Please check if I did this correctly. (Simple Transformer-Circuit Problem)

  • Context: Engineering 
  • Thread starter Thread starter pghaffari
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Discussion Overview

The discussion revolves around a homework problem involving an ideal transformer circuit, specifically focusing on finding the current Ix at a particular node. Participants explore the application of Kirchhoff's Current Law (KCL) and transformer equations to solve the problem.

Discussion Character

  • Homework-related

Main Points Raised

  • The initial poster expresses uncertainty about their approach, noting they believe they are one equation short after applying KCL and transformer equations.
  • One participant points out that the original diagram is unclear and difficult to read.
  • The poster shares a clearer version of the diagram and describes their application of KCL at the nodes Va, Vb, Vc, and Vd.
  • Another participant suggests that the poster may be trying to incorporate Ix too early in the process and recommends finding the node voltages first before calculating Ix.
  • The poster acknowledges the advice and realizes they should determine the voltages before calculating Ix, indicating a shift in their approach.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the correctness of the initial approach, but there is agreement on the need to first find node voltages before calculating Ix. The discussion reflects a refinement of the initial method rather than a resolution of the problem itself.

Contextual Notes

The discussion highlights potential limitations in the clarity of the original diagram and the assumptions made in applying KCL and transformer equations. There is also an indication that the poster's approach may have been premature in incorporating Ix.

Who May Find This Useful

Students working on transformer circuit problems, particularly those involving KCL and ideal transformer equations, may find this discussion relevant.

pghaffari
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Homework Statement



http://i.imgur.com/v6Xra.jpg

I am supposed to find Ix, the current at the top right. There is an ideal transformer in the circuit.

I basically applied KCL at the 4 nodes, and applied Transformer Voltage Equation and Transformer Current Equation. But I think I am ONE equation short..

Can someone please look over my work (in the picture) and tell me what's wrong? Been at this for a while now.

Thanks for all your help!
 
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I can't make out the writing near the top of your page, including the diagram.
 
http://imgur.com/4yxwi

Here is the original picture.

Ibasically did KCL setting the nodes from left to right

Va, Vb, Vc, Vd

You can zoom in and it should be more clear.
 
With your two ideal transformer equations and the KCL equations for your nodes b, c, and d, you should have enough equations. Perhaps you're trying to force Ix into the mix too soon. Find the node voltages first, then use them to find Ix.
 
you're right. I forced I_x too early. I figured out va and vc and THEN plugged it into Ix.

Thanks a lot! makes a lot more sense now~
 

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