On Tue, Oct 4, 2011 at 1:38 PM, Binayak Banerjee <[email protected]> wrote: > I started looking at the Circuit Analysis lab that was included in the J > Software release. However, I'm having a problem understanding the basic > axioms underlying the treatment.. > > 1. The first axiom is that the algebraic sum of the currents flowing into > and out of a "terminal" is 0. I take this as Kirchoff's current law, and > have no issue with this. > > 2. The second axiom states that if the voltage reference is changed, the > current is unaffected. <-- This I don't follow.
Voltage reference would be the value of electrical potential we consider as "0 volts". > The lab later states that "voltage vectors which differ by a scalar map to > the same current". Again, I'm not sure I follow. This is a restatement of the same principle that you asked about above: Let's say we have a circuit with four nodes. Let's say the voltages at those nodes are 84 54 63 42. Now let's say we subtracted 54 from the voltage at each node -- the current would not change. I hope this helps, -- Raul ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
