Author’s note: This article shows how to derive circuit gain equations via a signal flow graph. With practice you may be able to write a gain equation by ...

We prove that a properly edge-coloured complete graph Kn has a Hamilton circuit with edges of at least n - √2n distinct colours. This is proved with a method inspired by work on long partial ...

Components which show I–V graphs that are not straight lines are non-linear circuit elements. The current through them is not directly proportional to the potential difference across them. Non ...