[課業] 基本電學求高手解答
請問電學高手幫我解答一下
兩個電阻 R1=100歐姆正負5%,R2=200歐姆正負3%,求串聯後總電阻:
A: 300歐姆正負8歐姆
B: 300歐姆正負3.67%
C: 300歐姆正負8%
不懂後面的%數,求解,感激不盡
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