I learnt in one of my classes that “current flows in the path of least resistance” but how does the current know which path is least resistant?
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Imagine it more like the flow of water (or electrons)
If you have a really big bucket full of water, and you poke two holes in the bottom, one big and one small, more water flows out of the bigger hole.
Electrons are very similar. If more of them can pass through a certain space (bigger wires, different materials) then that is where they will go.
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