> > Here's a trivial EE question which i stumbled upon. how do > i calculate > > the effective resistance between pt A and B? > > > Its actually a "trick" question. Method of solution has been > pointed out by several people. The general solution (for > randomly selected resistor values) can be solved as suggested > by others. A related 'trick' question: take a wire cube, each wire has a resistance of 1 ohm. Put a 1 Volt battery on the two diagonally opposite points on one side. How much current does the battery supply? The trick is of course that some wires carry zero current. Wouter -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads