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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“current flows in the path of least resistance” is oversimplified.
Current flow through every path. The path with overwhelmingly low resistance has overwhelmingly more current flow through it, but it takes every other path as well.
Using water analogy(which is not exactly right, but close enough), you have a big pipe split into 2 paths one is bigger than the other. More water will obviously go to the bigger pipe(it’s bigger duh!), the individual water molecule itself doesn’t know that, it just goes with the flow.
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