WHY are the symbols for power on / off “|” and “◯”? 535 viewsJanuary 3, 2024 Question92.04K February 19, 2022 0 Comments What are/were they meant to represent? When were they introduced? I can’t find any consistent reliable sources. I’d really appreciate references if anyone has any! In: 27 24 Answers ActiveNewestOldest Anonymous Posted February 20, 2022 0 Comments The circle is open circuit and the line is closed circuit. Open circuit means off, closed means on. You are viewing 1 out of 24 answers, click here to view all answers. Register or Login
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