Electrolysis Practice Exam

In which direction does direct current flow?

1. Positive, negative

2. Negative, positive

3. East to West

4. North to South

The correct answer is: Negative, positive

The direction of direct current (DC) flow is from the positive terminal to the negative terminal of a power source, which aligns with the chosen answer. In this context, the correct flow of current can be understood by recognizing that conventional current is defined as the flow of positive charge. Therefore, it is described as moving from positive to negative. In practical terms, when a direct current is applied in a circuit, electrons actually move in the opposite direction, from negative to positive. However, by convention, the current flow is regarded as the movement of positive charge. Understanding this distinction is crucial for grasping basic electrical concepts. The other options might suggest directional meanings or conventions that don't accurately represent the concept of direct current. For instance, labeling the direction as East to West or North to South does not pertain to the scientific understanding of how current flows in electrical circuits. Thus, recognizing the flow from positive to negative as the conventional current helps in accurately interpreting the workings of direct current systems.