I- "abampere" iyiyunithi yombane kagesi engavamile ukusetshenziswa engavamile ukutholakala kuzichazamazwi ezijwayelekile zesiNgisi. Nokho, endabeni kagesi nezinto zikagesi, i-"abampere" ibhekisela kuyunithi yamandla kagesi alingana nama-ampere ayishumi. Ivamise ukusetshenziswa ezibalweni zethiyori kanye nocwaningo lwesayensi, kodwa ayisetshenziswa olimini lwansuku zonke noma ezintweni ezingokoqobo.