Nrog kev nce qib ntawm kev siv thev naus laus zis, qhov kev thov rau cov khoom siv hluav taws xob tau nce zuj zus ib hnub. Thiab ib qho ntawm cov khoom tseem ceeb, cov hlau tsis muaj zog, ua lub luag haujlwm tseem ceeb. Resistance hlau yog ib feem siv los tswj cov tam sim no thiab voltage, feem ntau pom nyob rau hauv ntau yam khoom siv hluav taws xob. T...
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