Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm kev tiv thaiv kev tiv thaiv yog raws li Ohm txoj cai. Nws txiav txim siab seb qhov tam sim no tam sim no hauv Circuit Court puas yog qhov qub los ntawm kev ntsuas tus nqi tiv thaiv hauv cov khoom hluav taws xob. Tus tester txuas ib qhov hluav taws xob rau cov khoom siv hluav taws xob tau sim, thaum tseem txuas lub ammeter (los yog voltmeter) mus rau lwm qhov kawg ntawm lub voj voog. Tom qab ntawd, tus ntsuas ntsuas yuav ntsuas qhov ntsuas tam sim no thiab qhov ntsuas hluav taws xob ntawm cov khoom hluav taws xob thiab suav tag nrho cov nqi tiv thaiv hauv Circuit Court siv Ohm txoj cai. Yog tias qhov ntsuas qhov ntsuas tsis zoo tshaj qhov kev tso cai, nws txhais tau hais tias yuav muaj kev txhaum lossis kev puas tsuaj hauv Circuit Court. Lub sijhawm no, nws yog ib qho tsim nyog yuav tsum tau ua ntau qhov kev soj ntsuam thiab kho cov khoom siv hluav taws xob. Kev tiv thaiv kev tiv thaiv tuaj yeem siv los ntsuas ntau yam circuits, cov khoom siv hluav taws xob, thiab cov tshuab, xws li cov tshuab hluav taws xob, cables, relays, keyboards, thiab lwm yam.
