Experiment description
In this experiment, the user controls the electric potential at points A and B. Electrons flow from the point of lower potential to higher potential, while current flows in the opposite direction. So, if A has a higher potential than B, electrons flow from B to A and current from A to B. If B is at a higher potential, electrons flow from A to B and current from B to A. Two arrows are used, one to show electron flow and the other to show current flow.
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