2 ms·

- "Electrical switching of the edge current chirality in quantum Hall insulators" (2023) https://news.ycombinator.com/item?id=38139569 https://news.ycombinator.

• westurner 2y ago
  Does this affect the standing issue of whether more current flows mostly through a wire or mostly down the edges, and whether stranded wire is better for a given application? Copper conductor: https://en.wikipedia.org/wiki/Copper_conductor https://en.wikipedia.org/wiki/Copper_conductor Skin effect: https://en.wikipedia.org/wiki/Skin_effect https://en.wikipedia.org/wiki/Skin_effect : > In electromagnetism, skin effect is the tendency of an alternating electric current (AC) to become distributed within a conductor such that the current density is largest near the surface of the conductor and decreases exponentially with greater depths in the conductor. It is caused by opposing eddy currents induced by the changing magnetic field resulting from the alternating current. The electric current flows mainly at the skin of the conductor, between the outer surface and a level called the skin depth.