Ammeter EDM

Lub hom phiaj dav dav ammeter, haum rau tsev kawm ntawv chav ntsuas los ntsuas cov kev sib tshuam tam sim no.– Nrog kev tiv thaiv Circuit Court ntawm silicon diode ntawm 'meter' ib pab tub rog, pub dawb los ntawm kev sib tshooj ntau dhauTshiab teev qhov tseeb ntawm?