
[問題] 有高手可以指點基本電學題目算法嗎?

小弟資質駑鈍,搞不清楚該用哪個方法求R2的電阻值,可以有高手指導一下嗎?感激不盡
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→
11/04 14:46, , 1F
11/04 14:46, 1F
→
11/04 14:48, , 2F
11/04 14:48, 2F
→
11/04 14:48, , 3F
11/04 14:48, 3F
→
11/04 14:48, , 4F
11/04 14:48, 4F
→
11/04 14:49, , 5F
11/04 14:49, 5F
→
11/04 15:18, , 6F
11/04 15:18, 6F
→
11/04 15:18, , 7F
11/04 15:18, 7F

推
11/04 17:35, , 8F
11/04 17:35, 8F
推
11/04 23:12, , 9F
11/04 23:12, 9F
→
11/04 23:12, , 10F
11/04 23:12, 10F
→
11/04 23:13, , 11F
11/04 23:13, 11F
推
11/08 16:55, , 12F
11/08 16:55, 12F