Question 26.5: Triangle Circuit - Is My Drawing Correct?

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The discussion centers on the correct configuration of a triangle circuit when applying a voltage across points Vab. The user initially misidentified node connections in their diagram, particularly the placement of the voltage source and the 20-ohm resistor. The correct approach is to connect the voltage source directly between nodes a and b, as specified in the instructions. This clarification allows for accurate calculations of equivalent resistance (R_eq) and current (I).

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I am not sure how the configuration would look like if we add a voltage across these points. I have drawn out what I think it would look like after a potential is applied across Vab. My question is, is this drawing correct?? What about Vbc and Vac?

This is question 26.5.

2vaimog.jpg


And here is my attempt for (a)

34656vt.jpg


Once I figure out the configuration, I can easily add up the R_eq and find the I from that. But I need to make sure my configuration is correct!
 
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For a diagram for part (a), the voltage source should be drawn between nodes a and b. You've not labeled node a correctly in the second diagram.
 
What should the 20ohm be connected to?
 
If the instructions say to put the voltage source between nodes a and b, then that's where you connect it!

attachment.php?attachmentid=40889&stc=1&d=1321140632.jpg
 

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gneill said:
If the instructions say to put the voltage source between nodes a and b, then that's where you connect it!

attachment.php?attachmentid=40889&stc=1&d=1321140632.jpg

Ohhhhh, duh... Thanks!
 

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