how to remember which wire is positve and which is negative
think of a solar panel and night and day at night when its black the solar panel produces no energy thats negative but during the day the sun is bright red and yellow it does produce energy positive so thats black negative red positive
True in Direct Current (DC) circuits, but not true in Alternating Current circuits (AC). With AC Black is Hot, and White is Common. I only mention this as both currents are found in many consumer electronics. But with that said your memonic works. I like your electronic tips & tricks. Thanks for sharing them.
Good point, thanks for the tip.
Huh, cool idea. Thanks.

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