When using a multimeter to check voltage , be sure you have a good ground for the black lead of the multimeter 當(dāng)用萬(wàn)用表檢查電壓,你一定有好的理由萬(wàn)用表的黑鉛
The practical work supporting chapter 2 introduces you to using a multimeter to make measurements from circuits 此實(shí)踐練習(xí)做為第2章節(jié)(指導(dǎo)你使用萬(wàn)用表在電路上測(cè)量) 。