电源电阻怎么算
人气:114 ℃ 时间:2020-03-26 10:10:29
解答
根据闭合电路欧姆定律,可以将该电源接一个已知阻值的电阻,电路里接一个电流表,测得电路电流I ,若已知电源电动势,则 电源内阻r=(E-IR)/I
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