Ua ntej tso cov xaim, ntau tus neeg tsuas yog coj cov perfunctory saib ntawm cov khoom .}}} tsis tau! Nws yuav ua rau kev rau txim loj heev! Raws li ib qho tseem ceeb ntawm cov hwj huam kis tau, qhov kev tshuaj xyuas cov haujlwm ua ntej tso cov hluav taws xob hluav taws xob yog qhov tseem ceeb tshaj plaws yog li ntawd ua ntej tso nws tawm?
1. Khuam} Khij cov qauv, kev qhia tshwj xeeb thiab voltage theem txheej yog lawm .
2. Khij cov rwb thaiv tsev cov kev ua tau zoo, cov rwb thaiv tsev tsis kam ua raws li tus qauv .
3. Khi} Khi cov kab sib txuas thiab cov khoom sib txuas yog tias cov khoom sib txuas yog tsis muaj cov khoom siv lossis kev sib txuas yog txhim kho {}}
