[請益] 請教103年台電僱員基本電學填充題第5題
103年台電僱員基本電學填充題第5題
http://www.yamol.tw/item_essay-5.%E5%A6%82%E4%B8%8B%E3%80%90%E5%9C%96+2%E3%80%91%E6%89%80%E7%A4%BA%EF%BC%8C%E6%B1%82+Vc+%E4%B9%8B%E5%80%BC%E7%82%BA_______%E4%BC%8F%E7%89%B9%28V%29%E3%80%82+-15841.htm#99
看參考書解答及高手解答
大致上為
先求VA
然後VA=VB
最後得VC=VB+5V
小弟不懂的是,為何VA=VB?
懇請高人指點賜教
謝謝
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