otu esi eji voltmeter

Ngwa igwe eletrik (Ohmmeter, Ammeter, Voltmeter)

Maka onye ọ bụla nwere mmasị, onye mmụta nke ọkụ eletrik, elektrọnik ma ọ bụ mpaghara metụtara ya, nrọ bụ ịnweta ngwa nke aka ha ...