Quote:
Originally Posted by scottz
It's nice to have experts to think about this stuff. Showing an oscilloscope on the two legs, in-phase then out-of-phase, might make it clear.
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Yeah, a schematic diagram along with a phase diagram helps visualize how/why current of the two separate hot legs flows in the common neutral wire in the same direction (same phase & additive) or in opposite directions (opposite phases & canceling).