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Flow of electric charge - typically movement of charge carriers, such as electrons. Measured in amperes (A).
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Why would electrons cross a cross section when there is no potential difference?
When we have potential energy (a battery connected to 2 sides of this section) electrons going from left to right are more than the ones going from right to left, and then there will be electrical current …
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Why does not current flow in open circuit wire connected to a closed circuit?
And if it happened, it would stuck inside the open wire at point "a", and current "i_y" would head back towards the source. … Here, I was thinking, what is the potential of an open circuit in this picture and is it lower enough for the current i to flow in it? …