Do scientists or engineers ever "reverse the polarity" o is that meaningless gibberish.?

Bill2014-11-14T12:20:42Z

Favorite Answer

It depends on what they are working on. Most electronic circuits won't work if you reverse the polarity of the power supply.

Ray;mond2014-11-14T20:54:54Z

If you reverse the polarity of vehicle jumper cables you get big sparks and the poorer battery may spray hot sulfuric acid = not pleasant.