Question

what is the potential different between positive
and negative
wire
​

Answer 1

Answer:

Typically, black is (-) negative, red is (+)positive, green is EARTH ground. Earth ground connects to the case or chassis of a device, and leads back to a breaker box which connects it into a big spike into the ground

Answer 2

Answer:

Its potential is taken as zero potential. Thus the positively charged conductor has more positive potential than the earth. A negatively charged conductor has negative potential less than that of the earth.

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