Answer
In Circuit (a), the resistors are connected in series.
In Circuit (b), the resistors are connected in parallel.
In Circuit (c), the resistors are connected in parallel.
Work Step by Step
In Circuit (a), all of the current in the circuit must pass through both resistors. Therefore, the resistors are connected in series.
In Circuit (b), the resistances are directly wired together on one side and directly wired together on the other side, and the same potential difference is applied across the resistors. Therefore, the resistors are connected in parallel.
In Circuit (c), the resistances are directly wired together on one side and directly wired together on the other side, and the same potential difference is applied across the resistors. Therefore, the resistors are connected in parallel.
