Ohmaps: crossing the Wheatstone bridge
I introduced ohmaps in parts 1 and 2 and looked at some simpler examples.
We looked at parallel and series resistor networks (and combinations of those):

And I wrote this:
And not every resistor network can be shown as an ohmap – things outwith simple series/parallel nestings, like delta or Y networks.
It turns out I was a little hasty here. So how might ohmaps cope with more interesting networks?