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di si zhang hzj 1 xing hai zhi pu jian lou yi dian lu fen xi
Pages: 30-37
Year: Issue:  S1
Journal: Vacuum and Cryogenics

Keyword:  氦质谱检漏仪欧姆定律电路分析放大器正弦波电流交流负载线电子管电容器纯电阻交流电路;
Abstract: <正> 一、电子学基础(1)直流电路1.欧姆定律欧姆定律是电测量中的最基本的定律。它在仅有纯电阻的电路中,表示电流、电压和电阻间的相互关系。欧姆定律常表示为:U=IR式中 U—电压(伏特);I—电流(安培);R—电阻(欧姆)。
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