Recommended

AC vs DC Switching Demonstration with Arcs

John Ward (jwflame)

Why people recommend it

Cited as a vivid demonstration by John Ward of why direct current arcs far worse than alternating current across contacts, and why switch ratings differ.

Watch for: Useful before using an AC-rated switch on DC

In their words

You can see a good demonstration of this here: [video] Sometimes it helps to see just how big the difference is.
Frodyne on electronics.stackexchange.com, Jun 2022. CC BY-SA.

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