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Created March 16, 2012
Last modified March 16, 2012
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Demo of graphically solving a KCL/KVL/resistor problem using parameter sweep.


Open this circuit, then run the DC Sweep simulation. This adjusts the resistance of R2 (as though it were a virtual potentiometer), and for each resistance, solves the entire circuit and plots the value of I(R2.nA), which is the current into R2.

Now, just inspect that plot and see what value of R2.R makes the current line intersect 1 Amp!

Original reddit discussion here

Original circuit by @jpeg2600:


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