I ended up figuring out this question (I wasn't starting at a and not c), but I have another one. How would I find the current through the second switch when it is closed?
Homework Statement
Four resistors connected to a battery are shown in the figure (at bottom). The switch S2 is closed and switch S2 is left open. What is the magnitude of the potential difference Vcd
Homework Equations
Rp= Σ(1/Ri)-1
Rs = ∑Ri
V = IR
The Attempt at a Solution
Seeing as c and d...