Tellegen's theorem, primarily referenced in classic texts such as "Linear and Nonlinear Circuits" by L.O. Chua, remains a crucial yet underrepresented concept in modern electrical engineering literature. This theorem asserts that the relationship between potential differences and currents holds true across networks with identical topologies, even if the networks are distinct. Its significance is often overlooked in basic circuit analysis education, as it is more relevant to advanced topics like SPICE simulations and graduate-level electrical engineering studies.
PREREQUISITESElectrical engineering students, circuit designers, and professionals interested in advanced circuit analysis and simulation techniques.
Source : Wikipedia
Another extension is when the set of potential differences is from one network and the set of currents is from an entirely different network, so long as the two networks have the same topology (same incidence matrix) Tellegen's theorem remains true.