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How does electricity find the "Path of Least Resistance"?

A 23-minute video by AlphaPhoenix about electrical signals and circuits, on the Physics shelf. It came up in r/AskPhysics, in a thread called “how do electricity actually find the shortest path?”. It is pitched at introductory level.

AlphaPhoenix, Video, 23 min, 2023, on the Physics shelf

Uses an electrical maze and a physical water model to explain current flow through multiple paths.

Study notes

Introductory, Experiment. Step 1 of 6 in The physics under electronics

Helpful first

• Basic circuits

What it builds

• Solve a maze using electrical current.
• Question the phrase “path of least resistance”.
• Compare current flow with water flowing through channels.

Useful moments

• 0:58Solving a maze with electricity
• 1:36The path-of-least-resistance claim
• 2:10Starting with water instead

Check yourself: If two paths are available, what determines how much current each receives?

Next in the path: Watch electricity hit a fork in the road at half a billion frames per second

Notes are based on metadata, Reddit context and selected English caption passages. They are not a review of every claim in the video.

Uses an electrical maze and a physical water model to explain current flow through multiple paths.