Kwụsịa ahịrịokwu na-esonụ na nhọrọ kachasị mma: Iji dozie ọsọ nke onye ofufe.  Nhọrọ: - gbanwee voltaji na-enye onye ofufe iji dozie ọsọ ọsọ. - Site na ike ọkọnọ, na-achịkwa ego nke ugbu a na voltaji na-enye onye ofufe.  Azịza:
na-agbanwe voltaji na-enye onye ofufe iji dozie ọsọ.