Hi all,

On this diagram

A real stupid question but would I be right in saying that R1 is in series with R2 and R3 is in parallel with R4???

 

The diagram is really difficult to read and interpret. Can you make one that shows up a bit better in a browser?

 

Certainly R1 and R2 are in series. All of the current going through one of them is also going through the other one.

Whether R3 and R4 are in parallel depends on what was supposed to be drawn on the right hand side of the diagram. If the leads just end as depicted, then R3 ins't even part of the circuit. For components to be in parallel, a common voltage must be across all of them. As depicted in the jpg, there would be no voltage across R3.