Polarity symbols

https://www.wikidata.org/wiki/Q7209148

Field Hierarchy

Parent
Physics 33M papers	Engineering 25M papers	Quantum mechanics 13.3M papers	Electrical engineering 4.8M papers
Voltage 1.6M papers	Breakdown voltage 23.1k papers	Polarity (mutual inductance) 1 papers
Current
Polarity symbols 1,640 papers
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