Igwe ọkụ eletrik dị elu bụ nke sekit agbakwunyere eletrọnịkị ma nwee arụmọrụ kwụsiri ike na ntụkwasị obi.Ọ nwere njirimara nke ọrụ nyocha onwe nke sekit zuru oke yana mgbochi mgbochi siri ike.High voltaji electroscope bụ ọdabara na ike nnyocha nke 0.4, 10KV, 35KV, 110KV, 220KV, 330KV, 500KV AC ike nnyefe na nkesa akara na akụrụngwa.