🌐EnglishEnglishEspañolItalianoTürkçeالعربيةفارسی中文日本語EntityQ5042828· pop 9· linked from 89 articleselectrical efficiencyuseful power output per electrical power consumedAvailable in 9 languagesEspañol中文ItalianoالعربيةAlbanianCatalanTürkçeفارسیvia Wikidata sitelinks · CC0Connectionsmaximum power transfer theoremEntityelectricityEntityCategoriesElectrical engineeringEnergy economics