Current Direction vs. Potential Difference

AI Thread Summary
Current is typically understood to flow from higher to lower potential difference, aligning with the concept that it moves towards decreasing potential. However, in junction diodes, the behavior of current is influenced by the diode's characteristics, where it can flow easily in the direction of positive potential difference and face resistance in the reverse direction. This raises questions about the conventional understanding of current direction in relation to potential difference. The discussion highlights the need to reconcile textbook definitions with practical observations in semiconductor devices. Understanding these nuances is crucial for grasping the behavior of current in various electrical components.
makino.sh
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Very simple question, but is it wrong to believe that current always points in the direction of decreasing potential difference?
 
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Why do you think it might be wrong?
 
From the textbook we use, it reads how in junction diodes resistance is low for currents in the direction of positive potential difference, and high for currents in the reverse, negative potential difference direction. Now I'm trying to figure out how a current can be pointed in the direction of positive potential difference.
 

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