Uqikelelo lweVeterolitha

Uqikelelo voltmeter, ilungele ilabhoratri yesikolo ukulinganisa i-voltage kwisekethe yeDC, ukubonisa neprojektha.-Kunye nokukhuselwa kwesekethe yesilicon diode kwisinxibo semitha, simahla kumonakalo omninziUkuchaneka kwesikali esipheleleyo se?