Comments by "Jovet" (@jovetj) on "How Receptacles Work - The basic working principle explained grounding" video.

  1. Alternating current changes polarity, usually 60 or 50 times a second. In one instance, the "hot" wire is (+) and the "neutral" wire is (–). 1/60th of a second later, the "hot" wire is now (–) and the "neutral" wire is (+). Imagine taking a battery and flipping it around 60 times a second. It's kinda like that. It's also why polarity is not a "thing" in AC circuits... it's never constant!
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  2. What do you want to know about contractors/relays? (A contractor is jut a relay.) A relay is simply a switch controlled by another circuit.
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