circuit analysisresistors
If I have a circuit like the one below, is it possible to determine the total resistance with the usual series and parallel analysis? I have been staring at it for a while and cannot see how I might do it because of the resistors on the left and the right. Hints would be appreciated.
simulate this circuit – Schematic created using CircuitLab
Try re-drawing the schematic:
simulate this circuit – Schematic created using CircuitLab
Hopefully the solution will be obvious once you do so (comment/ask if it's not).
the book is pretty correct as the circuit is like this:
simulate this circuit – Schematic created using CircuitLab This circuit would be in series if there were no wires shorting the circuit and then net resistance would be 15 ohm.
Best Answer
If by "parallel and series analysis" you mean combining resistors in series and parallel until you have a single resistor then no, you can't use that kind of analysis because there aren't any resistors in series or parallel to combine. I would be inclined to use node voltage analysis myself.
However, other people might prefer other methods of analysis, such as source transformation or delta-wye transformation. I usually just go for a nodal analysis because it is a general technique and I know it will work.