Light Switches that do the same function, how do they work?

Science & Mathematics by Anonymous 2018-09-17 12:33:46

Social Science

Light Switches that do the same function, how do they work?

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Okay, so I have these set of stairs, at the top there's a light switch to turn on the lights for the stairs, but at the bottom there's one that does the same job. I have forgotten which order they go in, mostly because I'm slightly autistic and I worry about things, but I didn't know what exactly to...