Finding Vy in a Circuit with Dependent Sources

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SUMMARY

The discussion focuses on determining the voltage Vy in a circuit with dependent sources. The user calculated Vx as 6V using Ohm's Law with a 5-ohm resistor and a current of 1.2A. They computed the total current supplier as 0.6A and the equivalent resistance of parallel resistors as 1.667 ohms. The voltage drop across the parallel resistors was found to be 2V, leading to a final calculation of 3.2V for Vy using Ohm's Law.

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Homework Statement


Determine Vy in the circuit of the below figure:
(In attachment)


Homework Equations


ohms law
resistance adding equations for parallel and series


The Attempt at a Solution


So I found Vx=(1.2A)(5ohms) = 6v
Afterwards I computed the current supplier: (6)(0.1)=0.6 A
Then I added the resistance of the parallel resistors and got 1.667 ohms
Then found the voltage drop across it using the 1.2 A and get 2 v.
Seeing how the parallel resistors share the same voltage, I computed the supposed current for each (without the dependent current supply) and get 1 A for the 2 ohm resistor.
Then I added the 1 A to the 0.6 A from before, and then applied ohms law (1.6 A)(2 ohms) to get 3.2.

This is my first time doing a problem regarding dependent sources, please let me know if I am missing any steps or using too many steps.

Thanks.
 

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maximade said:

Homework Statement


Determine Vy in the circuit of the below figure:
(In attachment)


Homework Equations


ohms law
resistance adding equations for parallel and series


The Attempt at a Solution


So I found Vx=(1.2A)(5ohms) = 6v
Afterwards I computed the current supplier: (6)(0.1)=0.6 A
Then I added the resistance of the parallel resistors and got 1.667 ohms
Then found the voltage drop across it using the 1.2 A and get 2 v.
Seeing how the parallel resistors share the same voltage, I computed the supposed current for each (without the dependent current supply) and get 1 A for the 2 ohm resistor.
Then I added the 1 A to the 0.6 A from before, and then applied ohms law (1.6 A)(2 ohms) to get 3.2.

This is my first time doing a problem regarding dependent sources, please let me know if I am missing any steps or using too many steps.

Thanks.

For some reason I'm not able to open the PDF file -- it says it is damaged or has other problems. Can you try uploading it again?
 
I made it on paint, here's a PNG file.
 
Sorry for the repost, but i don't think ti got though on my last reply. Here's the JPEG*
 

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One you know the current I then the potential drop across the 2 Ω resistor should be trivial by Ohm's law. You don't need any intermediate steps with parallel resistance calculations or anything else.
 

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