A cikin yanayi, ana samar da emf a duk lokacin da canjin filin magnetic ya faru ta hanyar farfajiyar. Canjin filin magnetic na Duniya a lokacin hadari na geomagnetic yana haifar da igiyoyi a cikin layin wutar lantarki yayin da layin filin magnetic ke motsawa kuma ya yanke ta hanyar masu gudanarwa. Tambaya: shin ƙwayoyin electrochemical zasu iya samar da Emf?
Na'urorin da zasu iya samar da emf sun hada da kwayoyin lantarki