Jerin Ƙarfin Electromotive, wanda kuma aka sani da jerin EMF, jerin karafa ne da madaidaitan ƙarfin wutar lantarki a cikin ma'auni na rabin tantanin halitta. Yana da ma'auni na dabi'ar karfe don rasa electrons kuma ya samar da ion mai kyau a cikin bayani. An tsara silsilar don rage yuwuwar wutar lantarki kuma ana amfani da ita don hasashen jagora da girman kwararar lantarki a cikin halayen lantarki. A cikin mafi sauƙi kalmomi, yana da matsayi na karafa dangane da ikon su na shan iskar oxygen da rage halayen a cikin tsarin sinadarai.