1. The problem statement, all variables and given/known data This is not exactly a homework problem, but it relates to homework problems. I have trouble understanding why exactly current in a circuit is the same everywhere. Current is the rate of flow of charge, or "charge per second". Why wouldn't charge flow faster in some areas and slower than other areas? Why wouldn't passing through a resistor slow down the charge? Why wouldn't the charge speed up when the resistance decreased? 2. Relevant equations I = V/R 3. The attempt at a solution In the equation, if the resistance is lower, current should be higher. If there is variable resistance in a circuit (different types of wires say, or resistors), why wouldn't current be different in different places?