Enwere ike kewaa ikpo nchaji n'ahịa ka ọ bụrụ ikpo nchaji DC, ikpo chaja AC na ikpo chaja enwere ike dịka usoro nchaji siri dị. Na mgbakwunye, ụlọ ọrụ anyị na-enyekwa ngwa ngwa ikpo ọkụ, dị ka nkwụnye ọkụ, egbe nwere isi abụọ, nchekwa nchekwa ike, wdg.