Electronics > Beginners
Negative voltage ?
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james_s:
You could think of it like a staircase, hill, etc. If you're on the ground, the stairs go up (positive), if you're at the top the stairs go down(negative), if you're in the middle then you have both positive and negative, you can go either up or down. The stairs haven't changed, it's just a matter of where your reference point is.
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