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This will probably make more sense if you draw it out. A light has two wires running to it. The switch breaks one of the lines. Draw two lines on a sheet of paper about 2 inches long. Draw a small circle in the middle to represent a light. Extend one of the lines to the light. To the side extend the other line to a box that represents the first switch. From that switch draw two lines to the second switch. Draw one line from the second switch back to the light. That completes the circuit. Power comes into the first switch on the single line and then through one of the two lines between the two switches and out the final single line to the light. It can use either of the two center lines depending on which way the switches are flipped. This makes sense to me, but it may be Greek to you. If you follow the drawing I think it should make sense.

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15y ago

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