I don't quite understand how to read circuit diagrams, so I'm not sure how to find the equivalent resistance in some cases.
What is the equivalent resistance of circuits A and B?
I drew a picture to help me explain what I'm talking about:
The Attempt at a Solution
I know circuit B is definitely in parallel, so the equivalent resistance is 1/R = 1/R1 + 1/R2.
But is circuit A in parallel, too? I think it is but I'm not 100 % sure.